Exercise device

ABSTRACT

Aspects of the present invention involve an exercise device configurable to allow a user to perform various exercises. The exercise devices include an adjustable bench assembly connected with a frame supporting adjustable arm and cable-pulley assemblies providing a user interface with a resistance system. In some embodiments of the invention, the adjustable bench assembly includes a bench seat and a pivotal back support supported on an adjustable bench frame. The exercise devices also utilize various configurations of adjustable arm assemblies that are selectively positionable for numerous exercises and to suit a user&#39;s particular body size and shape. Other embodiments of the exercise devices include a resistance system with a transmission supporting a plurality of resistance packs. The transmission allows a user to conveniently engage any number of resistance packs to change the resistance level for a particular exercise.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation-in-part of U.S. Non-Provisionalapplication Ser. No. 11/249,119, filed on Oct. 11, 2005 with ExpressMail Label No. EV 680 426 860 US, further identified by Attorney DocketNo. 34512/US/4, which claims the benefit of U.S. Provisional ApplicationNo. 60/618,131, filed Oct. 12, 2004; U.S. Provisional Application No.60/644,110, filed Jan. 14, 2005; and U.S. Provisional Application No.60/662,808, filed on Mar. 15, 2005, all of which are hereby incorporatedby reference herein.

U.S. Patent Application No. 29/225,514, titled “Exercise Device,” filedon Mar. 15, 2005; U.S. Pat. No. 4,944,511, titled “Adjustable ResilientReel Exerciser,” filed on Jan. 23, 1989; U.S. Pat. No. 5,209,461, titled“Elastomeric Torsional Spring Having Tangential Spokes With VaryingElastic Response,” filed on Jun. 12, 1992; U.S. Pat. No. 6,126,580,titled “Resistance Exercise Machine With Series Connected ResistancePacks,” filed on Aug. 7, 1998; and U.S. Pat. No. 6,440,044, titled“Resistance Mechanism With Series Connected Resistance Packs,” filed onAug. 1, 2000, are all hereby incorporated by reference herein.

BACKGROUND OF THE INVENTION

a. Field of the Invention

Aspects of this invention relate to exercise devices, some moreparticular aspects involve exercise devices utilizing an adjustablebench, a user interface with adjustable arms including a multi-axisrelease locking mechanism, a resistance system employing one or morenon-linear force curves, a resistance system transmission, and acable-pulley assembly.

b. Background Art

A variety of exercise devices provide a user with the ability to performvarious different exercises in different positions. Some of theseexercise devices include a bench and a resistance system connected witha frame. With some exercise devices, the user exercises by applyingforce to the resistance system through a cable and pulley system. Thebench and resistance system may be adjustable to permit the user to sitin different positions and allow the user to select different levels ofresistance. Portions of the frame as well as the cable and pulley systemmay also be adjustable to allow the user to adjust the exercise deviceto better conform with the user's size.

However, on some of these exercise devices, the range of positions forthe frame, bench, and cable and pulley system may be limited. Thus,these exercise devices confine the range of positions available forperforming various exercises. In addition, many of the exercise devicesmay require the user to perform numerous steps in order to repositionthe adjustable components. Further, these exercise devices only providethe user with the ability to change the level of resistance and do notallow a user to vary the force curve.

BRIEF SUMMARY OF THE INVENTION

Aspects of the present invention involve an exercise device configurableto allow a user to perform various exercises. The exercise devicesdescribed and depicted herein include an adjustable bench assemblyconnected with a frame supporting adjustable arm and cable-pulleyassemblies providing a user interface with a resistance system. Theexercise devices can include various types of resistance systems and/orresistance packs. Some embodiments of the exercise devices also includea resistance system with a transmission supporting a plurality ofresistance packs. The transmission allows a user to conveniently engageany number of resistance packs to change the resistance level for aparticular exercise. In addition to being able to select the level ofresistance, some embodiments of the exercise devices allow a user toselect from a plurality of force curves. The exercise devices can alsoutilize various configurations of adjustable arm assemblies that areselectively positionable for numerous exercises and to suit a user'sparticular body size and shape. One embodiment includes a releasablelocking mechanism that allows the user to simultaneously maneuver anadjustable arm assembly in more than one range of motion.

In one aspect of the present invention, an exercise device includes: aframe; an arm bi-directionally coupled with the frame through a firstaxle and a second axle; a first securing mechanism adapted to secure thearm in a first position relative to the first axle; a second securingmechanism adapted to secure the arm in a second position relative to thesecond axle; and a release mechanism operably coupled with the first andsecond securing mechanisms and adapted to simultaneously activate thesecuring mechanisms to move the arm about the first and second axles.

In another form of the present invention, an exercise device includes: aframe; a resistance system supported on the frame; a first arm assemblyoperably coupled with the resistance system and rotatably supported bythe frame, the first arm selectively positionable about a first axis ofrotation; and a second arm assembly operably coupled with the resistancesystem and rotatably supported by the frame, the second arm selectivelypositionable about a second axis of rotation.

In yet another form of the present invention, an exercise deviceincludes: a frame; a resistance system supported by the frame; anactuation device operably coupled with the resistance system; a firstcam operably coupled with the resistance system; a second cam operablycoupled with the resistance system; and a selector mechanism operablycoupled with the first and second cams, the selector mechanismconfigured to operably couple the first and second cams with theactuation device to change the resistance forces from the resistancesystem exerted on the actuation device as the actuation device isdisplaced.

In still another form of the present invention, an exercise deviceincludes: a frame; a resistance structure including a plurality ofresistance packs; and a selector mechanism including a plate supportinga plurality of pins, the pins operable to selectively connect at leastone of the plurality of resistance packs with the selector mechanism.

In still another form of the present invention, an exercise deviceincludes: a resistance system; an actuation device; a first pulleyrotatably; a first cable operably coupling the actuation device with thefirst pulley; a second pulley; a second cable operably coupling theresistance system with the second pulley; and a locking member connectedwith the second pulley and operable to selectively connect the secondpulley with the first pulley for simultaneous rotation of the first andsecond pulleys and to selectively disconnect the second pulley from thefirst pulley for independent rotation of the first and second pulleys.

In still another form of the present invention, an exercise deviceincludes: a frame; a rail extending from the frame; a seat movablysupported on the rail; at least one pulley rotatably connected with theseat; a resistance system supported on the frame; at least one cabledefining a first end portion adapted to connect with the frame and asecond end portion operably coupled with the resistance system; whereinthe at least one cable extends from the first end portion, around the atleast one pulley, and to the second end portion.

In still another form of the present invention, an exercise deviceincludes: a frame; a rail extending from the frame; and a seat movablyconnected with the rail such that the seat can move along the length ofthe rail and pivot relative to the rail.

In still another form of the present invention, an exercise deviceincludes: a frame; a rail defining a first end portion and a second endportion, the first end portion pivotally connected with the frame; aseat supported by the rail; a support assembly pivotally connected withthe second end portion of the rail and adapted to support the second endportion of the rail at least at a first height and a second heightrelative to a support surface.

In still another form of the present invention, an exercise deviceincludes: a frame; a first rail defining a first end portion and asecond end portion, the first end portion pivotally connected with theframe; a seat supported by the first rail; a second rail defining afirst end portion and a second end portion, the first end portion of thesecond rail pivotally connected with the frame below the first endportion of the first rail; a support assembly pivotally connected withthe second end portion of the first rail and pivotally connected withsecond end portion of the second rail, the support assembly adapted tosupport the first end portion of the first rail above a support surface;and wherein when the first rail is pivoted upward from a first positionto a second position toward the frame, the relative motion between thesecond end portion of the second rail and the second end portion of thefirst rail causes the support assembly to pivot toward the second rail.

In still another form of the present invention, an exercise deviceincludes: a frame; a leg exercise assembly pivotally coupled with theframe through an axle; the leg exercise assembly including: a resistancearm pivotally connected with the axle, the resistance arm including anarm portion extending from an arcuate pivot portion, the pivot portionincluding a plurality of apertures; a first member pivotally connectedwith the axle adjacent a first side of the resistance arm; a secondmember pivotally connected with the axle adjacent a second side of theresistance arm; a pop-pin supported between the first member and thesecond member and adapted to selectively engage at least one of theplurality of apertures to connected the first and second members withthe resistance arm; and a housing slidingly connected with the firstmember and second member and adapted to selectively disengage thepop-pin from the at least one of the plurality of apertures todisconnect the first and second members from the resistance arm.

In still another form of the present invention, an exercise deviceincludes: a frame including at least one upright member; at least onehook connected with the at least one upright member; and a selectivelyremovable foot plate assembly having a main body defining a channeladapted to receive a portion of the at least one upright member andincluding a handle bar adapted to support the foot plate assembly fromthe at least one hook.

In still another form of the present invention, an exercise deviceincludes: a frame; a rail extending from the frame; a seat movablysupported on the rail, the seat including a plurality of studs; and aremovable seat back adapted to connect with the seat, the removable seatback including two rails each having at least two hooks adapted toconnect with the plurality of studs on the seat.

In still another form of the present invention, an exercise deviceincludes: a frame; a resistance structure including an axle supported onthe frame; a transmission assembly coupled with the resistancestructure; and a plurality of resistance packs adapted to receive theaxle, each one of the plurality of resistance packs including a housingadapted to connect with the transmission assembly and another one of theplurality of resistance packs.

The features, utilities, and advantages of various embodiments of theinvention will be apparent from the following more particulardescription of embodiments of the invention as illustrated in theaccompanying drawings and defined in the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A is a front right side isometric view of a first embodiment of anexercise device according to the present invention.

FIG. 1B is a rear right side isometric view of the exercise device ofFIG. 1A.

FIG. 1C is a front left side isometric view of the exercise device ofFIG. 1A.

FIG. 1D is a rear left side isometric view of the exercise device ofFIG. 1A.

FIG. 2A is a view of the exercise device configured for leg extensionexercises.

FIG. 2B is a view of the exercise device configured for leg curlexercises.

FIG. 2C is a view of the exercise device configured for leg pressexercises.

FIG. 2D is a view of the exercise device configured for pull-downexercises.

FIG. 2E is a view of the exercise device configured for bench pressexercise.

FIG. 2F is a view of the exercise device configured for inclined benchpress exercises.

FIG. 2G is a view of the exercise device configured for preacher curlexercises.

FIG. 2H is a view of the exercise device configured in a storageconfiguration.

FIG. 3A is a right rear isometric view of an upright portion of a mainframe of the exercise device.

FIG. 3B is a bottom isometric view of the base structure of the mainframe.

FIG. 3C is a partial view of a bench support portion of the main frame.

FIG. 4A is a detailed view of bench frame connected with a bench supportportion of a main frame.

FIG. 4B is a detailed view of a pivotal connection between the benchframe and the bench support portion of the main frame.

FIG. 4C is a detailed right isometric view of a forward bench support.

FIG. 4D is a detailed left isometric view of the forward bench support.

FIG. 5 is a detailed right side view of a seat rail and a forward benchsupport.

FIG. 5A is a cross-sectional view of the forward bench support depictedin FIG. 5, taken along line 5A-5A.

FIG. 5AA1 is a cross-sectional view of the forward bench supportdepicted in FIG. 5A, taken along line 5AA-5AA showing the forward benchsupport in an upright position.

FIG. 5AA2 is a cross-sectional view of the forward bench supportdepicted in FIG. 5A, taken along line 5AA-5AA showing the forward benchsupport in a rear pivot position.

FIG. 5B is a cross-sectional view of the seat rail and wheel carassembly depicted in FIG. 5, taken along line 5B-5B.

FIG. 5BB is a cross-sectional view of the seat rail and wheel carassembly depicted in FIG. 5B, taken along line 5BB-5BB.

FIG. 5C is a cross-sectional view of the seat rail and wheel carassembly depicted in FIG. 5, taken along line 5C-5C.

FIG. 5D is a cross-sectional view of a back support pop-pin depicted inFIG. 5, taken along line 5D-5D.

FIG. 5E is a cross-sectional view of a leg developer assembly depictedin FIG. 5, taken along line 5E-5E.

FIG. 5EE is a cross-sectional view of the leg developer assemblydepicted in FIG. 5E, taken along line 5EE-5EE.

FIG. 5F is a cross-sectional view of a support member and support postdepicted in FIG. 5, taken along line 5F-5F.

FIG. 6A shows an alternative embodiment of a forward bench supportpivotal connection structure.

FIG. 6B shows the alternative embodiment of the forward bench supportpivotal connection structure with the forward bench support in a tiltedposition.

FIG. 6C is a left side view of the alternative embodiment of the forwardbench support pivotal connection structure.

FIG. 6D is a is a cross-sectional view of the forward bench supportpivotal connection structure depicted in FIG. 6C, taken along line6D-6D.

FIG. 6E is a detailed view of the alternative embodiment of the forwardbench support pivotal connection structure being placed in a storageconfiguration.

FIG. 6F is a detailed view of the alternative embodiment of the forwardbench support pivotal connection structure in a storage configuration.

FIG. 7A is an exploded view of the wheel car assembly and the seat rail.

FIG. 7B is a detailed view of a swivel pop-pin engaged with a rightaperture.

FIG. 7C is a detailed view of the swivel pop-pin in position to engage aleft aperture.

FIG. 8A is a front isometric view of a resistance arm assembly.

FIG. 8B is a rear isometric view of the resistance arm assembly.

FIG. 9 is a detailed view of a left arm assembly.

FIG. 10 is a detailed view of a right arm assembly.

FIG. 10A 1 is a cross-sectional view of the right arm assembly depictedin FIG. 10, taken along line 10A-10A showing a slider pop-pin engagedwith an upright member.

FIG. 10A 2 is a cross-sectional view of the bench assembly depicted inFIG. 10, taken along line 10A-10A showing the slider pop-pin disengagedfrom the upright member.

FIG. 11 is a second detailed view of the right arm assembly.

FIG. 11A is a cross-sectional view of the right arm assembly depicted inFIG. 11, taken along line 11A-11A.

FIG. 11B is a cross-sectional view of the right arm assembly depicted inFIG. 11, taken along line 11B-11B.

FIG. 12A is a view of the right arm assembly in a first position.

FIG. 12B is a view of the right arm assembly in a second position.

FIG. 12C is a view of the right arm assembly in a third position.

FIG. 13A is a detailed view of a first embodiment of a multi-axisrelease mechanism.

FIG. 13B is a detailed view of a second embodiment of a multi-axisrelease mechanism.

FIG. 13C is a detailed view of a third embodiment of a multi-axisrelease mechanism.

FIG. 14 is a detailed view of a right and left cable-pulley assembliesof the exercise device.

FIG. 15 is a detailed view of a transmission assembly.

FIG. 15A is a cross-sectional view of the transmission assembly depictedin FIG. 15, taken along line 15A-15A.

FIG. 15B is a cross-sectional view of the transmission assembly depictedin FIG. 15, taken along line 15B-15B.

FIG. 15C is a cross-sectional view of the transmission assembly depictedin FIG. 15, taken along line 15C-15C.

FIG. 15D is a cross-sectional view of the transmission assembly depictedin FIG. 15, taken along line 15D-15D.

FIG. 15E is an exploded view of the transmission assembly of FIG. 15.

FIG. 16A is a detailed view of the transmission assembly with a firstcam aligned with a third resistance cable.

FIG. 16B is a detailed view of the transmission assembly with a secondcam aligned with the third resistance cable.

FIG. 16C is a detailed view of the transmission assembly with a thirdcam aligned with the third resistance cable.

FIG. 16D is a side view of the transmission assembly with a cam selectormechanism removed.

FIG. 17A shows one embodiment of the first cam.

FIG. 17B shows one embodiment of the second cam.

FIG. 17C shows one embodiment of the third cam.

FIG. 18A is detailed view of the transmission assembly showing the thirdresistance cable wrapped onto the first cam.

FIG. 18B is a side view of the third cable and first cam shown in FIG.18A.

FIG. 18C is detailed view of the transmission assembly showing the thirdresistance cable wrapped onto the second cam.

FIG. 18D is a side view of the third cable and second cam shown in FIG.18C.

FIG. 18E is detailed view of the transmission assembly showing the thirdresistance cable wrapped onto the third cam.

FIG. 18F is a side view of the third cable and third cam shown in FIG.18F.

FIG. 19A is a front view of a transmission assembly and a resistanceassembly of the right resistance system.

FIG. 19B is a right isometric view of the transmission assembly andresistance assembly of FIG. 19A.

FIG. 19C is a left isometric view of the transmission assembly andresistance assembly of FIG. 19A.

FIG. 20A is an isometric view of a first side of a resistance pack.

FIG. 20B is a view of the resistance pack in FIG. 20A with the firstside removed.

FIG. 20C is an isometric view of a second side of the resistance pack ofFIG. 20A.

FIG. 20D is a view of the resistance pack in FIG. 20C with the secondside removed.

FIG. 20E is an isometric view of a resistance element.

FIG. 21A is an isometric view of a resistance assembly.

FIG. 21B is an isometric view of a resistance assembly.

FIG. 21C is a detailed view showing a resistance pack mounted on asplined portion of a resistance axle.

FIG. 21D is a cross-sectional view of the resistance assembly depictedin FIG. 21A, taken along line 21D-21D.

FIG. 21E is a view of the resistance assembly shown in FIG. 21D with astop rod removed.

FIG. 22A is an isometric view of an alternative exercise device.

FIG. 22B is an exploded view of a shroud cover of the exercise device ofFIG. 22A.

FIG. 22C is an isometric view of the exercise device of FIG. 22A with aback support configured as a flat bench.

FIG. 22D is an isometric view of the exercise device of FIG. 22A withthe back support in an inclined position.

FIG. 22E is an isometric view of the exercise device of FIG. 22Aconfigured for leg press exercises with a removable seat back support.

FIG. 22F is an isometric view of the exercise device of FIG. 22Aconfigured for preacher curl exercises.

FIG. 22G is a right side view of the exercise device of FIG. 22A in astorage configuration.

FIG. 23A is a right side isometric view of a main frame of the exercisedevice of FIG. 22A.

FIG. 23B is a left bottom side isometric view of the main frame of theexercise device of FIG. 22A.

FIG. 23C is a detailed view of a lower foot plate assembly connectedwith a main frame of the exercise device of FIG. 22A.

FIG. 24A is an exploded view of a forward bench support.

FIG. 24B is a left side detailed isometric view of the forward benchsupport.

FIG. 24C is a left side detailed isometric view of the forward benchsupport with a left support member removed.

FIG. 25A is an isometric view of the second exercise device with analternative embodiment of a forward bench support.

FIG. 25B is a right side detailed view of the alternative forward benchsupport.

FIG. 25C is a left side detailed view of the alternative forward benchsupport.

FIG. 25D is a left side view of the second exercise device with thealternative embodiment of the forward bench support.

FIG. 25E is a left side view of the second exercise device with thealternative embodiment of the forward bench support pivoted in arearward direction.

FIG. 25F is a left side view of the second exercise device with thealternative embodiment of the forward bench support pivoted in a storageconfiguration.

FIG. 26A is a detailed view of a bench seat and seat rail.

FIG. 26B is a detailed bottom view of the bench seat of FIG. 26A.

FIG. 27A is detailed view of a back support.

FIG. 27B is a detailed view of a rear end portion of a back support.

FIG. 28A is a front right isometric view of a removable foot plateassembly.

FIG. 28B is a front left isometric view of the removable foot plateassembly.

FIG. 28C is a rear right isometric view of the removable foot plateassembly.

FIG. 29A is a detailed view of a bench seat with a removable leg pressseat back.

FIG. 29B is a detailed view of the removable leg press seat back removedfrom the bench seat.

FIG. 29C is left side view of a resistance cable and seat pulleyarrangement.

FIG. 29D is a detailed isometric view of a bench seat having cablestorage housings.

FIG. 29E is a is a cross-sectional view of the bench seat depicted inFIG. 29D, taken along line 29E-29E.

FIG. 29F is a detailed view of leg press cables in a storedconfiguration wrapped around cable storage housings on a bench seat.

FIG. 29G is a detailed view of a cable adjustment mechanism.

FIG. 30A is an exploded view of a leg developer assembly.

FIG. 30B is a detailed exploded view of a leg developer pop-pin.

FIG. 30C is a cross sectional view of the leg developer pop-pin engagedwith the resistance member.

FIG. 30D is a cross sectional view of the leg developer pop-pindisengaged from the resistance member.

FIG. 30E is a left side view of the leg developer assembly configuredfor leg extension exercises.

FIG. 30F is a left side view of the leg developer assembly configuredfor leg curl exercises.

FIG. 31A is a detailed view of right and left arm assemblies.

FIG. 31B is a detailed view of pop-pin connections for right and leftarm assemblies.

FIG. 31C is a detailed view of gas springs connected with the right andleft arm assemblies.

FIG. 31D is a right side view of an upper end portion of an arm supportmember.

FIG. 31E is a front detailed view of the upper end portion of the armsupport member.

FIG. 31F is a rear detailed view of the upper end portion of the armsupport member.

FIG. 32A is a right isometric detailed view of right and leftcable-pulley assemblies.

FIG. 32B is a left isometric detailed view of right and leftcable-pulley assemblies.

FIG. 32C is a cross sectional view of a linearizing cam and belt pulleyconnected with a resistance belt.

FIG. 33A is an exploded view of tensioning mechanism.

FIG. 33B is a cross sectional view of a belt pulley.

FIG. 33C is a cross sectional view of a locking member.

FIG. 33D is a cross sectional view of the tensioning mechanism showingthe locking member disengaged from the belt pulley.

FIG. 33E is a cross sectional view of the tensioning mechanism showingthe locking member engaged with the belt pulley.

FIG. 34A is an isometric view of resistance pack showing a first side.

FIG. 34B is an isometric view of the resistance pack showing a secondside.

FIG. 34C is an isometric view of the first side of the resistance packshown in a resistance element.

FIG. 34D is a side view of the resistance element.

FIG. 34E is an isometric view of a resistance element having a firstwidth.

FIG. 34F is an isometric view of a resistance element having a secondwidth.

FIG. 34G is an isometric view of a resistance element having a thirdwidth.

FIG. 35A is a detailed view of a linearizing cam and resistance axle.

FIG. 35B is an exploded view of a linearizing cam, first resistancepack, a clam shell clamp, and resistance axle.

FIG. 35C is a cross sectional view of the clam shell claim andresistance axle.

FIG. 36A is a right side isometric view of a second alternative exercisedevice.

FIG. 36B is a left side isometric view of a second alternative exercisedevice.

FIG. 36C is right front isometric view of a cable-pulley system of thesecond alternative exercise device.

FIG. 36D is left rear isometric view of a cable-pulley system of thesecond alternative exercise device.

FIG. 36E is left front isometric view of a cable-pulley system of thesecond alternative exercise device.

FIG. 36F is right rear isometric view of a cable-pulley system of thesecond alternative exercise device.

DETAILED DESCRIPTION OF THE INVENTION

Aspects of the present invention involve an exercise device configurableto allow a user to perform various exercises. The exercise devicesdescribed and depicted herein include an adjustable bench assemblyconnected with a frame supporting adjustable arm and cable-pulleyassemblies providing a user interface with a resistance system. Asdiscussed below, the exercise devices can include at least one cablehaving a first end connected with a handle or other actuation componentand a second end operably coupled with a resistance pack and/or theresistance system. It is to be appreciated that other embodimentsinclude more than one cable to actuate a single resistance pack. In someembodiments having more than one cable, each cable is operably coupledwith a separate resistance arrangement. The exercise devices can alsoinclude various types of resistance systems and/or resistance packs. Forexample, some exercise devices include resistance packs with torsionalsprings. With such an exercise device, one or more resistance packs areactuated by grasping the handles and pulling the cable such that thetorsional springs are wrapped about an axis to impart resistance againstthe cable motion and hence against the user. Other embodiments of theexercise devices include a resistance system with a transmissionsupporting a plurality of resistance packs. The transmission allows auser to conveniently engage any number of resistance packs to change theresistance level for a particular exercise.

In addition to being able to select the level of resistance, someembodiments of the exercise devices allow a user to select from aplurality of force curves. A force curve defines how resistance forcesfrom the resistance system vary through a user's range of motion duringexercise. For example, some embodiments allow a user to select anincreasing resistance which is referred to as a “progressive” forcecurve. Other embodiments allow a user to select a decreasing resistancewhich is referred to as a “regressive” force curve. With a progressiveforce curve, the exercise resistance increases from the beginning ofactuation of a resistance pack through full actuation. With a regressiveforce curve, the exercise resistance decreases from beginning to fullactuation. Still other embodiments provide a variable force curve havingan initially increasing resistance from the beginning of actuation of aresistance pack and then a decreasing resistance through full actuation.Yet other embodiments provide a variable force curve having an initiallydecreasing resistance from the beginning of actuation of a resistancepack and then an increasing resistance through full actuation.

In some embodiments of the exercise device, the adjustable benchassembly includes a bench seat and a pivotal back support supported onan adjustable bench frame that allows the user to adjust the height andlevel of the seat and back support as well as the orientation of thebench relative to the frame. The exercise devices also utilize variousconfigurations of adjustable arm assemblies that are selectivelypositionable for numerous exercises and to suit a user's particular bodysize and shape. One embodiment includes a releasable locking mechanismthat allows the user to simultaneously maneuver an adjustable armassembly in more than one range of motion.

A first embodiment of an exercise device 100 conforming to aspects ofthe present invention is shown in FIGS. 1A-1D. A frame 102 providesstructural support for the exercise device 100. It is to be appreciatedthat the frame can take on numerous different configurations dependingon particular arrangements and combinations of the exercise device. Someparticular frame arrangements are shown and discussed herein withreference to a bench frame portion 104 and a main frame portion 106. Thebench frame 104 includes an arrangement of frame members for supportinga seat or bench assembly 108 and various user interface components. Asdiscussed in more detail below, the bench assembly 108 can be adjustableand can include a bench 110 with a pivoting back support 112 and anadjustable bench seat 114. In addition, the bench frame 104 can includea seat rail 116 with a first end portion 118 pivotally connected withthe main frame 106 and a second end portion 120 supported by a forwardbench support 122. As shown in FIGS. 1A-1D, the main frame 106 supportsadjustments arm assemblies 124, a cable-pulley system 126, a resistancesystem 128, and other features. The adjustable arm assemblies 124 andcable-pulley assembly 126 provide a user interface with the resistancesystem 128. Although embodiments of the exercise device are describedand depicted has having cable-pulley systems utilizing various types ofpulley arrangements, it is to be appreciated that the exercise devicesare not limited to specific arrangements described and depicted herein.Further, it is contemplated that the exercise devices can utilizedevices other than pulleys to guide cables, such as cylinders, rails,and various other mechanisms. In addition, it is to be appreciated thatother embodiments can include movable pulleys and other similar devicesthat are guided along cables or tracks. As discussed in more detailbelow, each arm assembly 124 can include a multi-axis release mechanismthat allows a user to simultaneously maneuver each arm assembly in tworanges of motion. It is to be appreciated that the main frame 106 cansupport one or more resistance systems 128. For example, as shown inFIGS. 1A-1D, the exercise device includes a right resistance system 130and a left resistance system 132. Each resistance system can include atransmission 134 and a resistance assembly 136 having a plurality ofselectable resistance packs 138. As discussed in more detail below,embodiments of the resistance system can also include a first selectormechanism 140 operably coupled with the transmission assembly 134 thatallows the user select different force curves. A second selectormechanism 142 operably coupled with the resistance assembly 136 allowsthe user to select a desired level of resistance.

With particular respect to the exercise device of FIGS. 2A-2H, to usethe exercise device, a user first selects the amount of resistance andthe force curve for a particular exercise. The user also connectsresistance cables 144 extending from the arm assemblies 124 with anactuation device 146, such as a bar, a leg developer station, or ahandle similar to those shown in FIGS. 2D-2H. Separate actuation devicesmay be arranged so that each resistance cable 144 and associatedresistance system 130, 132 are separately actuated by the user, or thecables coupled together, so that a user actuates both resistance systemssimultaneously through one actuation device. As discussed in more detailbelow, the resistance cables 144 are routed through the arm assembliesand cable-pulley assembly and are operably coupled with the resistancesystems 130, 132. The user then places the bench frame 104, benchassembly 108, and arm assemblies 124 into desired orientations for aparticular exercise. Next, the user positions his body on the exercisedevice 100 and begins exercising by exerting forces through theactuation devices 146 on the resistance cables. As the cables 144 aremoved in a direction away from ends of the arm assemblies 124, theresistance systems 130, 132 exert resistance forces on the cables in anopposing direction. It is to be appreciated that the order in which thepreviously described operations can be performed may vary and should notbe construed to be limited to the order described. Some of the variousexercises that can be performed with the exercise device along withassociated component orientations are also illustrated in FIGS. 2A-2H,discussed below.

Embodiments of the exercise devices are described herein with theperspective of a user seated on the bench while facing the main frame106 and resistance system 128. For example, components designated as“right” are on the right side of the exercise device from theperspective of a user in the previously described position. In manyinstances, however, users will operate an exercise device conforming tosome aspect of the invention while seated facing away from the frame andresistance system, such as shown in FIG. 2A or not seated at all. Assuch, aspects of the invention are not limited to the orientation of auser, and left and right references are provided merely for theconvenience of the reader.

FIGS. 2A-2H illustrate the bench frame 104 in various orientations. Asintroduced above, the forward bench support 122 is pivotally connectedwith the seat rail 116 to allow a user to selectively adjust the leveland height of the seat rail. For example, as shown in FIGS. 2A-2C, theforward bench support 122 is substantially vertical with respect to thesupport surface, which causes the second end portion 120 of the seatrail 116 to be elevated relative to the first end portion 118 of theseat rail. The orientations shown in FIGS. 2A-2C provide properclearance for operation of various types of actuation devices 146, suchas a leg developer assembly 148 fitted to a forward portion of the benchframe 104. The leg developer assembly can be configured to allow a userto perform leg extensions, leg curls, and other leg exercises. As shownin FIGS. 2D-2F, a bottom portion of the forward bench support 122 ismoved rearwardly such that the forward bench support is tilted withrespect to the support surface. As such, the second end portion 120 ofthe seat rail 116 is pivoted downward from the position of FIGS. 2A-2Cto be substantially level with respect to the support surface. Theorientations shown in FIGS. 2D-2F and others, provides a substantiallylevel seat rail 116, which is advantageous for performing back squats,rowing, and other exercises where the bench seat 114 moves along therail 116 during exercise. The substantially level seat rail is alsouseful in exercises where the seat is stationary. Thus, FIGS. 2A-2Hillustrate various use configurations of the bench.

As discussed in more detail below, the bench frame can also beconfigured to allow a user to place the exercise device in a storageconfiguration. For example, as shown in FIG. 2H, the exercise device canbe placed in a storage configuration by pivoting the second end portion120 of the seat rail 116 upward toward the main frame 106 until the seatrail is substantially vertical with respect to the support surface. Asdiscussed in more detail below, the seat rail 116 can also beselectively locked in the storage position.

As previously mentioned, the back support 112 and the bench seat 114 canbe individually and collectively adjustable. For example, the bench seat114 may be rollingly coupled with the seat rail 116 such that the benchseat can roll back and forth along the length of the seat rail.Additionally, the back support 112 may be selectively locked in variouslocations relative to the seat rail. For example, FIGS. 2A, 2E, and 2Fshow the bench seat 114 selectively locked into various positions alongthe length of the seat rail 116. Embodiments of the exercise device alsoallows the user to configure the bench seat 114 to roll freely back andforth along the seat rail. In addition, some embodiments of the benchseat 114 can also selectively rotate or swivel with respect to the seatrail. For example, as shown in FIG. 2A, the bench seat 114 is forwardthe back support 112 so that a user may sit in a forward direction awayfrom the main frame 106. In contrast, FIG. 2L shows the seat 114 rotated180° with the back support 112 forward the bench seat so that the usermay sit in a rearward direction toward the main frame 106. Further, asthe back support 112 can also be tilted or pivoted with respect to theseat rail 116 and bench seat 114. For example, FIGS. 2A and 2E show theback support 112 locked in a position that is substantially orthogonalwith respect to the bench seat 114, whereas FIG. 2B shows the backsupport 112 adjacent the seat rail 116 wherein the back support andbench seat collectively define a flat bench. Detailed descriptionsrelated to component structures of the exercise device that provide thevarious reconfiguration capabilities of the exercise device are providedbelow.

As previously mentioned, the main frame 106 of the exercise device 100supports the resistance system 128, the adjustable arm assemblies 124,and the cable-pulley system 126. Further, the main frame 106 pivotallysupports the first end portion 118 of the seat rail 116. As shown inFIGS. 3A-3C and others, the main frame 106 includes an upright structure150 supported by a base structure 152. The base structure 152 includes aplatform plate 154 supported on a substantially rectangular-shaped baseframe 156. The base frame 156 includes front and rear cross members 158,160 connected with and separated by right and left base members 162,164. The platform plate 154 is supported on upper surfaces of forwardend portions of the right and left base members 162, 164 as well as anupper surface of the front cross member 158. The base frame 156 alsoincludes a plate support cross member 166 connected between the rightand left base members supporting a rear end portion of the platformplate 154. Right and left plate support members 168, 170 extend betweenthe front cross member 158 and the plate support cross member 166provide additional support to the platform plate 154.

As shown in FIG. 3A, right and left wheels 172, 174 are rotatablyconnected with the rear cross member 160 that allow a user to maneuverthe exercise device along a support surface from one location toanother. Although the exercise device includes wheels, it is to beappreciated that the exercise device can also include rollers, skidplates, or other components to assist with maneuvering the exercisedevice. When the main frame 106 is supported by the base frame 156, thewheels are positioned adjacent to and slightly above the supportsurface. To move the exercise device from one location to another, auser can first place the exercise device 100 in the storageconfiguration shown in FIG. 2H. Once in the storage configuration, theuser can pivot the main frame 106 rearward to bring the wheels 172, 174into engagement with the support surface. The user can then roll theexercise device 100 along the support surface to a desired location.

As previously mentioned, the resistance system 128 is connected with andsupported by the main frame 106. More particularly, the uprightstructure 150 of the main frame includes a resistance support portion176 defined by an arrangement of frame members for supporting theresistance system 128. As shown in FIG. 3A, the resistance supportportion 176 includes a right rear upright member 178 and a left rearupright member 180 connected the rear cross member 160 on the base frame156. The right rear upright member 178 and the left rear upright member180 extend upward from the rear cross member 160 and connect with anupper cross member 182. Front and rear base plates 184 are connectedwith front and rear surfaces of the rear upright members 178, 180 andthe rear cross member 160 to provide additional strength to theconnections of these members. Front and rear upper cross plates 186 areconnected with upper end portions of the right and left rear uprightmembers 178, 180 to provide additional stability the rear uprightmembers. A transmission support member 188 extending upward and forwardfrom the upper cross member 182 supports a lower end portion of a rearupright pulley support member 190. As discussed in more detail below,the combination of the transmission support member 188 and the right andleft rear upright members 178, 180 support the resistance system 128 aswell as a portion of the cable-pulley system 126.

As shown in FIG. 3A, the main frame 106 further includes right and leftupright members 192, 194 that support the arm assemblies. The right andleft upright members 192, 194 are connected with end extending upwardfrom the right and left base members 162, 164 of the base frame 156,respectively. For additional structural stability, a pair of rightsupport brackets 196 and a pair of left support brackets 198 areconnected with lower end portions of the right and left upright members192, 194 and the base frame 156. In addition, front and rear upperpulley plates 200, 202 are connected between upper end portions of theright and left upright members. As discussed in more detail below, thefront and rear pulley plates rotatably support four pulleys forming aportion of the cable-pulley system 126.

As previously mentioned, the first end portion 118 of the seat rail 116is pivotally connected with the main frame 106. More particularly, theseat rail 116 is pivotally connected with a bench support portion 204 ofthe main frame 106, which is defined by an arrangement of frame members.As shown in FIGS. 3A and 3C, the bench support portion 204 includes aforward upright member 206 connected with and extending upward from thebase structure 152. A bottom end portion of the forward upright member206 is connected with a base connection member 208, which in turn, isconnected with the plate support cross member 166. The base connectionmember 208 defines a substantially U-shaped cross section defined byfront and rear sides 210, 212 connected with a top side 214. When thebase connection member 208 is connected with the plate support crossmember 166, the front, rear, and top sides of the base connection member208 are positioned adjacent to corresponding sides of the plate supportcross member. As discussed in more detail below, the bench frame 104 ispivotally connected with the forward upright member 206.

As shown in FIGS. 3A and 3C, the bench support portion 204 of the mainframe 106 also supports right and left foot plates 216, 218. The footplates provide platforms upon which a user can place his feet whenperforming various exercises, such as leg press exercises as shown inFIG. 2C. Referring to FIG. 3A, the bench support portion 204 includes aforward foot plate support member 220 connected with an upper endportion of the forward upright member 206. The forward foot platesupport member 220 extends rearward from the forward upright member 206and is connected with a bottom end portion of a foot plate uprightmember 222. The foot plate upright member extends upward and connectswith a forward end portion of a rear foot plate support member 224. Inturn, the rear foot plate support member 224 extends rearwardly from anupper end portion of the foot plate upright member 222 and connects withthe front upper cross plate 186 on the resistance support portion 176 ofthe main frame 106. The right and left foot plates 216, 218 areconnected with and are supported by right and left foot plate supportmembers 226, 228 extending outward from opposing right and left sides ofthe rear foot plate support member 224. To provide additional support tothe right and left foot plate support members, angle brackets 230 areconnected with the rear foot plate support member 224 and the right andleft foot plate support members 226, 228.

As previously mentioned, the bench assembly 108 and bench frame 104 canbe adjustable to support a user's body in different positions whileperforming various types of exercises. As shown in FIGS. 2A-2H, thebench assembly 108 includes the bench 110 with the back support 112 andthe bench seat 114 adjustably connected with the bench frame 104. Theincline of bench frame 104 can be adjusted relative to the supportsurface, and the incline of the back support 112 can be adjustedrelative to the bench seat 114. The bench assembly 108 further providesthe user with the ability to swivel the bench seat. The user can alsoselectively adjust the position of the seat along the length of the seatrail 116 and also configure the seat to freely roll back and forth alongthe seat rail.

As previously mentioned, the first end portion 118 of the seat rail 116is pivotally connected with the forward upright member 206 and can beselectively placed in an upward storage configuration and a downwardoperating configuration. More particularly, the seat rail 116 ispivotally connected with the forward upright member 206 through a firstseat rail axle 232. As shown in FIGS. 4A and 4B, right and left seatrail axle brackets 236, 238 extending from the first end portion 118 ofthe seat rail 116 include apertures adapted to receive opposing endportions of the first seat rail axle 232, which, in turn, is supportedby an upper end portion of the forward upright member 222. As such, theseat rail can pivot about the first rail axle to place the seat rail inthe operating configuration and the storage configuration. In someembodiments of the exercise device, the bench frame 104 can beselectively locked in the operating and storage configurations. Forexample, as shown in FIG. 4B, the exercise device includes first seatrail pop-pin 234 adapted to engage the seat rail 116 to lock the seatrail in the operating and storage configurations. More particularly, thefirst seat rail pop-pin 234 is supported by the forward foot platesupport member 220 and is adapted to selectively engage a first aperture240 and a second aperture 242 in the left seat rail axle bracket 238.

When the bench frame 104 is in the operative position, as shown in FIGS.2D and 4B for example, the first seat rail pop-pin 234 is engaged withthe first aperture 240 in the left seat rail axle bracket 238. As such,the seat rail 116 is a locked in a downward position that issubstantially horizontal with respect to the support surface. In someembodiments that allow the seat rail incline to be adjusted while in theoperating configuration, the first aperture 240 can be elongated toallow the seat rail 116 to pivot slightly to allow the seat rail inclineto be adjusted. To place the bench frame in the storage configuration,as shown in FIG. 2H for example, a user disengages the first seat railpop-pin 234 from the first aperture 240 and lifts the second end portion120 of the seat rail 116 upward. As the second end portion of the seatrail is lifted upward, the seat rail 116 pivots about the first seatrail axle 232 until the first seat rail pop-pin 234 engages the secondaperture 242 on the left seat rail axle bracket 238. Once the first seatrail pop-pin engages the second aperture, the seat rail is held in asubstantially vertical position with respect to the support surface. Toreturn the bench frame to the operative position, the first seat railpop-pin 234 is disengaged from the second aperture 242 and the secondend portion 120 of the seat rail is lowered until the first seat railpop-pin engages the first aperture 240.

As previously mentioned, the incline of the bench frame on someembodiments of the exercise device can be adjusted while in theoperating configuration. For example, as shown in FIGS. 4C and 4D, theforward bench support 122 of the exercise device 100 is pivotallyconnected with and supports the second end portion 120 of the seat rail116 to allow the incline of the seat rail to be adjusted. As mentionedabove with respect to FIGS. 2A-2C, when the forward bench support 122 issubstantially vertical with respect to the support surface, the secondend portion 120 of the seat rail 116 is elevated relative to the firstend portion 118 of the seat rail. Alternatively, as shown in FIGS.2E-2F, when the forward bench support 122 is pivoted rearwardly suchthat the forward bench support is tilted with respect to the supportsurface, the second end portion 120 of the seat rail 116 is pivoteddownward from the position of FIGS. 2A-2C to be substantially level withrespect to the support surface.

As shown in FIGS. 4C and 4D, the forward bench 122 support includesright and left support members 244, 246 connected with a cross member248. An upper cross plate 250 and a lower cross plate 252 are connectedwith front edges of lower and upper end portions, respectively, of theright and left support members. A pair of end caps 254 are connectedwith opposing end portions of the cross member 248 and are adapted toengage the support surface. The right and left support members 244, 246extend upward from the cross member and are pivotally connected with thesecond end portion 120 of the seat rail 116 through a second seat railaxle 256. More particularly, the support members 244, 246 includeapertures adapted to receive opposing end portions of the second seatrail axle 256. The second seat rail axle 256, in turn, is supported byan axle support member 258 extending downward from the second endportion 120 of the seat rail 116. As such, the forward bench support canpivot about the second seat rail axle. As shown in FIGS. 4C and 4D,right and left leg station pulleys 260, 262 are rotatably supportedbetween the right and left support members 244, 246 of the forward benchsupport 122. As discussed in more detail below, the resistance cables144 can extend from the arm assemblies 124 and partially around the legstation pulleys to connect with various types of actuation devices 146,such as the leg developer assembly 148.

The exercise device 100 can also be configured with a pivotal connectionstructure 264 that limits the pivotal movement of the forward benchsupport 122 as well as provide for selected pivotal positioning of theforward bench support. For example, as shown in FIGS. 4C, 4D, and5A-5AA2, the pivotal connection structure 264 includes an arcuate plate266 adapted to engage the upper cross plate 250 to limit the range ofpivotal movement of the forward bench support. The arcuate plate 266extends downward from the axle support member 258 between the right andleft support members 244, 246. As shown in FIGS. 5AA1 and 5AA2, thearcuate plate 266 includes a curved lower edge 268 with a forward stop270 and rear stop 272. The forward stop 270 is adapted to engage a frontside 274 of the upper cross plate 250 when the forward bench support 122is pivoted forward as shown in FIG. 5AA1. The rear stop 272 is adaptedto engage a rear side 276 of the upper cross plate 250 when the benchsupport is pivoted rearward, as shown in FIG. 5AA2.

As shown in FIGS. 5-5AA2, the pivotal connection structure 264 includesa second seat rail pop-pin 278 that provides for selected pivotalpositioning of the forward bench support 122. More particularly, thesecond seat rail pop-pin 278 allows a user to selectively position thesecond end portion 120 of the seat rail 116 in an inclined positionshown for example in FIG. 2C, and a substantially level position shownin FIG. 2D. The second seat rail pop-pin 278 is supported by the leftsupport member 246 and is adapted to selectively engage a forwardaperture 280 and a rear aperture 282 in the arcuate plate 266.

Referring to FIGS. 2C and 5AA1, when the bench frame 104 is in theinclined position, the second seat rail pop-pin 278 is engaged with theforward aperture 280 on the arcuate plate 266. In addition, the forwardstop 270 on the arcuate plate 266 is in contact with or in closeproximity with the front side 274 of the upper cross plate 250. Theheight of the right and left support members 244, 246 and the crossmember 248 elevate the second end portion 120 of the seat rail 116 withrespect to the first end portion 118 of the seat rail 116, effectivelycreating an incline from the second end portion to the first endportion. To place the bench frame 104 in a substantially level positionas shown in FIGS. 2D and 5AA2, the second seat rail pop-pin isdisengaged from the forward aperture 280, which allows the supportmembers 244, 246 and cross member 248 to pivot rearward toward the mainframe 106. Movement of the cross member 248 in a rearward directioncauses the right and left support members 244, 246 to pivot about thesecond seat rail axle 256 until the second seat rail pop-pin 278 engagesthe rear aperture 282 on the arcuate plate 266. Once the second seatrail pop-pin engages the rear aperture, the right and left supportmembers are held in a tilted position with respect to the supportsurface. In addition, the rear stop 272 on the arcuate plate 266 is incontact with or in close proximity with the rear side 276 of the uppercross plate 250. The tilting of the right and left support members 244,246 acts to lower the second end portion 120 of the seat rail 116 withrespect to the first end portion 118 such that the first and second endportions are located at substantially the same height above the supportsurface. To return the bench frame 104 to the inclined position, thesecond seat rail pop-pin 278 is disengaged from the rear aperture 282and the cross member 248 is moved in a forward direction until thesecond seat rail pop-pin 278 engages the forward aperture 280 in thearcuate plate 266.

An alternative embodiment of a pivotal connection structure 284 betweenthe seat rail and the forward bench support 122 is shown in FIGS. 6A-6E.The pivotal connection structure 284 allows the forward bench support122 to pivot toward the seat rail 116 when the bench frame 104 is placedin the upward storage configuration. In addition, the pivotal connectionstructure 284 provides for selective adjustment of the seat railincline. The pivotal connection structure 284 includes a pivotadjustment mechanism 286 connected with the forward bench support 122and the seat rail 116. The pivot adjustment mechanism 286 provides forselective adjustment of pivotal position of the forward bench support122 relative to seat rail 116. The pivot adjustment mechanism 286includes a first member 288 pivotally connected with a support bracket290 extending downward from the seat rail 116. A second member 292 ispivotally connected between the right and left support members 244, 246below the second seat rail axle 256. The second member 292 is adapted totelescopically receive the first member 288. A pop-pin 294 supported onthe second member 292 is adapted to engage apertures 296 along thelength of the first member 288. The pop-pin 294 allows the pivotalposition of the forward bench support 122 to be selectively adjustedrelative to the seat rail 116. For example, when the pop-pin 294 isdisengaged from the apertures 296 in the first member 288, the forwardbench support 122 can pivot about the second seat rail axle 256. As theforward bench support 122 pivots rearward and forward about the secondseat rail axle, the first member 288 slides into and out of,respectively, the second member 292. When the forward bench support 122is placed in the desired pivotal position, the pop-pin 294 is engagedwith one of the apertures 296 on the first member 288, locking the firstand second members in position relative to each other. In turn, theforward bench support 122 is locked into the desired pivotal positionrelative to the seat rail 116. It is to be appreciated that the secondmember can include various numbers of apertures to provide for numerousselectable pivotal forward bench support positions. In addition, aspreviously mentioned, the first and second members 288, 292 can also beconfigured to allow the forward bench support 122 to pivot about thesecond seat rail axle 256 to limit the amount the forward bench supportprotrudes from the seat rail 116 when the seat rail is placed in thestorage configuration, as shown in FIGS. 6E and 6F. In particular, FIG.6E shows the forward bench support being folded upward toward the seatrail and FIG. 6F shows the forward bench support folded with the seatrail in an upright storage configuration.

As previously mentioned, the bench seat 114 can be adjustably connectedwith the bench frame 104 to allow the bench seat to move along thelength of the seat rail 116 as well as swivel relative to the seat rail.More particularly, the bench seat 114 is movably coupled with the seatrail 116 through a wheel car assembly 298 that allows a user to roll thebench seat back and forth along the length of the seat rail. As shown inFIGS. 5B, 5BB and 7A, the wheel car assembly 298 includes a body 300having a lower portion 302 connected with a flat upper portion 304through a relatively narrow middle portion 306. The lower portion 302defines a generally upside down U-shaped cross section with a right side308 and a left side 310 connected with and separated by a top side 312.The right side 308 of the lower portion 302 rotatably supports threeright side wheels 314, and the left side 310 of the lower portion 302rotatably supports three left side wheels 316. The top side 312 of thelower portion 302 rotatably supports four center wheels 318 having anaxis of rotation that is substantially orthogonal to the axis ofrotation of the side wheels. As shown in FIG. 7A, the seat rail 116 isadapted to receive the wheels on the wheel car assembly 298.

Referring to FIGS. 5B and 7A, the seat rail 116 defines a generallyrectangular cross section having a relatively long top and bottom sides320, 322 connected with and separated by relatively short right and leftsides 324, 326. A slot 328 extending the length of the top side 320 theseat rail 116 defines a right top ledge 330 and left top ledge 332. Atrack member 334 having a generally H-shaped cross section defined by aright side 336 and a left side 338 connected with and separated by amedial side 340 extends the length of the bottom side 322 of the rail116. A right track 342 is defined between the right side 324 of the seatrail 116 and the right side 336 of the track member 334 and is adaptedto rollingly receive the three right side wheels 314 on the wheel car298. Correspondingly, a left track 344 is defined between the left side326 of the seat rail 116 and the left side 338 of the track member 334and is adapted to receive the three left side wheels 316 of the wheelcar 298. In addition, a center track 346 defined between the right side336, left side 338, and medial side 348 of the track member 334 receivesthe four center wheels 318.

Referring to FIG. 5B, the vertical distance between the bottom side 322and the right top ledge 330 and the left top ledge 332 of the seat rail116 is greater than the diameters of the right and left side wheels 314,316. As such, as the wheel car 298 moves along the length of the seatrail 116, each of the six side wheels roll along either the bottom side322 or the top side 320 of the seat rail 116. The wheel car assembly 298is normally supported by the six side wheels 314, 316, which, in turn,are rollingly supported by the bottom side 322 of the seat rail 116.However, if the wheel car assembly 298 is subjected to forces that causethe body 300 of the wheel car assembly to tip backward, forward, orside-to-side, some of the side wheels can disengage the bottom side 322and engage the top side 320 of the seat rail 116. As shown in FIG. 5B,the distance between the right and left sides 336, 338 of the trackmember 334 is larger than the diameters of the four center wheels 318.As such, when the wheel car 298 is subjected to forces that cause thewheel car assembly to move from side-to-side, some of the center wheels318 can engage the right 336 and/or left sides 338 of the track member334.

As previously mentioned, the bench seat 114 can be configured to eitherroll freely along the length of the seat rail 116, or can be selectivelylocked into various positions along the length of the seat rail. Moreparticularly, the wheel car assembly 298 can include a bench seatpop-pin 348 adapted to selectively engage apertures 350 in the seat rail116 to selectively lock the bench seat into a desired positioned alongthe length of the seat rail. As shown in FIG. 5B, the narrow middleportion 306 of the wheel car assembly 298 extends upward from the lowerportion 302 and through the slot 328 in top side 320 of the seat rail116. The flat upper portion 304 of the wheel car 298 supports a lowerplatform 352, which includes a flange 354 extending downward adjacent tothe right side 324 of the seat rail 116. The downwardly extending flange354 supports the bench seat pop-pin 348, which is adapted to engage oneof the plurality of apertures 350 located in the right side 324 of theside rail 116. As previously mentioned, the bench seat pop-pin allows auser to selectively lock wheel car assembly 298 and bench seat 114 intovarious positions along the length of the seat rail 116. For example,the bench seat pop-pin can be disengaged from an aperture on the seatrail, which allows the bench seat to roll backward or forward to adesired position along the length of the seat rail. Once the bench seatis rolled to a desired location along the seat rail, the bench seatpop-pin be engaged with another aperture in the seat rail to lock thebench seat into the desired position.

As shown in FIGS. 5B and 7B, the bench seat pop-pin can include acylindrically-shaped body 356 housing a spring 358 operably connectedwith a pin 360. The spring 358 acts to force the pin 360 against theright side 324 of the seat rail 116. The pin 360 can be disengaged fromthe seat rail 116 by pulling on a ring 362 connected with the pin in adirection away from the right side 324 of the seat rail 116. When movingthe bench seat 114 from a first location to a second along the seatrail, a user can pull the ring 362 to disengage the pin 360 from theseat rail 116. While holding the pin in disengagement from the seatrail, the bench seat 114 and wheel car assembly 298 can be rolled to thesecond location. Once the bench seat is in the second location, the ring362 can be released, which allows the spring 358 to force the pin 360back into engagement with the seat rail 116. If the pin 360 is alignedwith one of the apertures 350 in the right side of the seat rail, thepin will extend into one of the apertures, locking the bench seat intothe second position. If the pin 360 is not aligned with one of theapertures 350, the pin will be forced against the right side 324 of theseat rail 116. The bench seat 114 can then be rolled backward andforward until the pin 360 is aligned with and forced into one of theapertures 350.

As previously mentioned, the bench seat 114 can also be configured toroll freely along the seat rail 116. More particularly, the bench seatpop-pin 348 can be selectively configured to disable the spring-loadedfeature so the pin 360 is not forced against the right side 324 of theseat rail 116. As shown in FIG. 7B, the body 356 of the bench seatpop-pin 348 includes a first pair of channels 364 and a second pair ofchannels 366 extending inward from a distal end portion of the body. Thechannels 364, 366 are adapted to receive a portion of the ring 362 andact to limit the distance that the pin 360 can extend from the body 356toward the seat rail 116. A user can align the ring with either pair ofchannels by pulling the ring 362 outward from the body 356 and turningthe ring into alignment with the desired pair of channels. As shown inFIGS. 5B and 7B, when the ring 362 is aligned to be received within thefirst pair of channels 364, the pin can extend far enough toward theseat rail 116 to engage one of the apertures 350, which prevents thebench seat 114 from freely rolling along the seat rail. The first pairof channels 364 are longer than the second pair of channels 366. Assuch, when the ring is aligned to be received within the second pair ofchannels 366, the pin 360 does not extend far enough from the body toengage the seat rail 116. Therefore, when the ring is received withinthe second pair of channels 366, the bench seat 114 can freely roll backand forth along the seat rail 116 without the spring 358 forcing the pin360 against the right side 324 of the seat rail 116 and into one of theapertures 350.

As previously mentioned, the bench seat 114 can also be configured toswivel with respect to the seat rail 116. As shown in FIGS. 5B and 5BB,the bench seat 114 is connected with the lower platform 352 on the wheelcar assembly 298 through a swivel plate 368 rotatably connected with abench seat axle 370. More particularly, the bench seat 114 includes apadded portion 372 connected with and supported on a bench seat plate374. As shown in FIGS. 5B, 5BB, and 7B, the bench seat plate, in turn,is supported on a bench seat support structure 376, which is supportedby and connected with the swivel plate 368. The bench seat supportstructure 376 includes a first seat bracket 378 and a second seatbracket 380 connected with and separated by a center plate 382. Thebench seat support structure 376 also includes a cylindrically-shapedsleeve 384 extending between and connected with the swivel plate 368 andthe center plate 382. The sleeve 384 is adapted receive the bench seataxle 370 and associated bearings 386. As shown in FIG. 5B, the benchseat axle 370 extends upward from the lower platform 352, through anaperture in the swivel plate 368, and through the bearings 368 insidethe sleeve 384 of the bench seat support structure 376. The bench seatsupport structure is also connected with the bench seat axle 370 by abolt 388 extending through a top washer 390 and threaded into the benchseat axle 370. As such, the bench seat 114, swivel plate 368, and seatsupport structure 376 are can rotate together around the bench seat axle370.

The bench seat 114 can be configured to freely swivel around the benchseat axle 370 and can also be selectively locked into a desired pivotalposition. As shown in FIGS. 5B, 5C, 7B, and 7C, a swivel pop-pin 392mounted on the swivel plate 368 is adapted to engage the lower platform352 to provide for selective adjustment of the rotational position (i.e.swivel) of the bench seat 114 with respect to the seat rail 116. Theswivel pop-pin includes a body 394 housing a pin 396 adapted to engage aright aperture 398 and a left aperture 400 in the lower platform 352. Ahandle 402 connected with the pin 396 can be moved up and down todisengage and engage the pin, respectively, with the lower platform 352.When the swivel pop-pin 392 is engaged with the left aperture 400 in thelower platform 352 as shown in FIG. 7C, a user seated on the bench seat114 may be facing in a forward direction away from the main frame 106 ofthe exercise device 100, such as shown in FIG. 2A. To change theorientation of the bench seat, a user can move the handle 402 on theswivel pop-pin 392 upward to disengage the pin 396 from the leftaperture 400 on the lower platform 352, which allows the bench seat 114to rotate around the bench seat axle 370. Once the bench seat is rotatedto align the pin 396 with the right aperture 398 in the lower platform352, the handle 402 can be moved downward to insert the pin into theright aperture, locking the bench seat into position. Once the swivelpop-pin is engaged with the right aperture as shown in FIG. 7B, the usermay be facing in a rearward direction toward the frame of the exercisedevice, such as shown in FIG. 2C. Although the lower platform isdepicted and described with right and left apertures, it is to beappreciated that the lower platform can include additional aperturesadapted to receive the swivel pop-pin to provide additional rotationalpositions of the bench seat.

The bench seat 114 can also be configured to pivot freely about thebench seat axle without the swivel pop-pin engaging the lower platform352. More particularly, the swivel pop-pin 392 can be selectivelyconfigured to maintain to the position of the handle 402 to hold the pin396 out of engagement with the lower platform 352. As shown in FIG. 7C,the handle 402 extends through a slot 404 in the body 394 of the swivelpop-pin 392. The slot 404 includes a first downward extending channel406 and a second downward extending channel 408. The channels 406, 408are adapted to support the vertical position of handle 402 and act tolimit the distance the pin 396 can extend from the body 394 toward thelower platform 352. A user can move the handle 402 into either channelby lifting the handle upward and moving the handle along the slot 404and into alignment with the desired channel. As shown in FIG. 7B, whenthe handle is received within the first channel 406, the pin can extendfar enough toward the lower platform 352 to engage one of the apertures398, 400, which prevents the bench seat 114 from freely pivoting aboutthe bench seat axle 370. The first channel 406 is longer than the secondchannel 408. As such, when the handle is received within the secondchannel 408, the pin 396 does not extend far enough from the body toengage the lower platform 352, as shown in FIG. 7C. Therefore, when thehandle is received within the second channel, the bench seat can freelypivot about the bench seat axle without the pin engaging the lowerplatform and/or the right and left apertures.

As previously mentioned, the back support 112 of the bench assembly canbe configured with a selectively adjustable incline relative to thebench seat 114. More particularly, the back support 112 is pivotallyconnected with bench seat 114 and can include a back support pop-pin 410to selectively lock the back support into a desired inclination. Asshown in FIGS. 5 and 5BB, the back support 112 includes a padded portion412 mounted on a back support rail 414, which is pivotally connectedwith the bench seat support structure 376 through a seat back axle 416.As shown in FIGS. 5B and 5BB, the seat back axle 416 is connected withand extends between the first seat bracket 378 and the second seatbracket 380. As shown in FIG. 5, the back support pop-pin is supportedby an extended portion 418 of the first seat bracket 378. The backsupport pop-pin is adapted to engage apertures 420 an arcuate plate 422extending rearwardly from the back support rail 414. As such, thearcuate plate 422 pivots up and down with the back support rail 414. Asshown in FIG. 1D, the arcuate plate 414 is aligned to be received withinthe slot 328 in top side 320 of the seat rail 116 as the back support ispivoted downward.

As previously mentioned, the back support pop-pin 410 provides forselective adjustment of the degree of incline of the back support 112relative to the bench seat 114. As shown in FIGS. 5 and 5D, the backsupport pop-pin 410 can include a body 424 housing a spring 426 operablycoupled with a pin 428. The spring 426 acts to force the pin 428 againstthe arcuate plate 422 on the back support rail 414. The pin 428 can bedisengaged from the arcuate plate 422 by pulling on a handle 430connected with the pin in a direction away from the arcuate plate 422.When pivoting the back support 112 from a first incline to a secondincline, a user can pull the handle 430 to disengage the pin 428 fromthe arcuate plate 422. While holding the pin in disengagement from thearcuate plate, the back support 112 can be pivoted about the seat backaxle 416 to the second incline position. Once the back support is in thesecond incline position, the handle 430 can be released, which allowsthe spring 426 to force the pin 428 back into engagement with thearcuate plate 422. If the pin 428 is aligned with one of the apertures420 in the arcuate plate 422, the pin will extend into one of theapertures, locking the back support 112 into the second level ofincline. If the pin is not aligned with one of the apertures, the pinwill be forced against the arcuate plate 422. The back support 112 canthen be pivoted up and down until the pin 428 is aligned with and forcedinto one of the apertures 420.

As discussed above with reference to FIGS. 2A-2H, the bench assembly 108is shown in various positions and configurations to allow a user toperform various exercises. For example, FIGS. 2A, 2B, 2E and 2F show thebench seat 114 and back support 112 selectively locked into variouspositions along the length of the seat rail 116. In addition, FIG. 2Cshows the bench seat configured to roll freely back and forth along theseat rail to perform leg press exercises. As shown in FIG. 2C, theresistance cables 144 are connected with the bench seat 114. Moreparticularly, as shown in FIGS. 2C and 7B, the resistance cables 144 canbe connected with eyelets 432 at opposing end portions of a resistancecable connection member 434 connected with and extending between thefirst and second seat brackets 378, 380.

As previously mentioned, the exercise device 100 may include the legdeveloper assembly 148 shown in FIGS. 1C, 5, and others, that can beused for various types of exercises, such as leg extensions and legcurls. As shown in FIGS. 4A, 5, 5E, and 5EE, the leg developer assemblyincludes an actuation member 436 and a resistance arm assembly 438, bothpivotally supported from the second end portion 120 of the seat rail116. The resistance arm assembly 438 and the actuation member 436 arepivotally connected with a leg developer axle 440 supported by right andleft axle brackets 442, 444 extending from the second end portion 120 ofthe seat rail 116. As discussed in more detail below, the actuationmember 436 is selectively connected with the resistance arm assembly 438through a leg developer pop-pin 446. As such, the pivotal position ofthe actuation member 436 relative to the resistance arm assembly 438 canbe selectively adjusted to place the leg developer assembly 148 in adesired configuration for use. With the leg developer assembly in thedesired configuration, the resistance cables 144 are connected with theresistance arm assembly 438 and the user exercises by applying forces onthe leg developer assembly to reciprocatingly pivot the actuation member436. Because the actuation member 436 is connected with the resistancearm assembly 438 through the leg developer pop-pin 446, the actuationmember and the resistance arm assembly pivot together.

As previously mentioned, the resistance cables 144 can be connected withthe leg developer assembly 148 through the resistance arm assembly 438.The resistance arm assembly is also pivotally connected with the legdeveloper axle 440 and is selectively connected with the actuationmember 436 through the leg developer pop-pin 446. As shown in FIGS. 8Aand 8B, the resistance arm assembly 438 includes a pivot member 448connected with a resistance arm 450. The pivot member includes anarcuate edge 452 connected with a first substantially flat edge 454 anda second substantially flat edge 456. The first edge 454 is angularlyoffset from the second edge 456. A portion of the resistance arm 450extends along the second edge 456 of the pivot member 448 and isconnected with the pivot member through side brackets 458. The pivotmember 448 includes an axle aperture 460 adapted to receive the legdeveloper axle 440 to pivotally support the resistance arm assembly 438.The pivot member 448 also includes a plurality of circumferentiallyspaced apertures 462 extending into the arcuate edge 452. As discussedin more detail below, the leg developer pop-pin 446 is adapted to engagethe apertures 462 to provide for selective pivotal positioning of theactuation member relative to the resistance arm assembly. A stop plate464 connected with first edge 454 of the pivot member 448 provides alimit to the pivotal movement of the actuation member relative to theresistance arm assembly in one direction. As shown in FIG. 8B, a slot466 in a rear side 468 of a lower end portion of the resistance armprovides access to a shaft 470 extending between right and left sides472, 474 of the resistance arm 450. As discussed in more detail below,the shaft 470 provides a connection location for the resistance cables144. As shown in FIG. 8B, pads 476 are connected with upper and lowerend portions of the rear side 468 of the resistance arm member. The padsare adapted to prevent direct contact between the resistance arm and thebench frame.

As mentioned above, the actuation member 436 is pivotally connected withthe leg developer axle 440 and is selectively connected with theresistance arm assembly 438 through the leg developer pop-pin 446. Asshown in FIGS. 5, 5E, and 5EE, and others, the actuation member 436 isconnected with the leg developer axle 440 through first and secondextension brackets 478, 480 extending from an end portion of theactuation member 436 and along opposing sides of the pivot member 448.The leg developer pop-pin 446 is partially housed within the actuationmember 436. The leg developer pop-pin includes a body 482 connected withand supported by an end cap 484 on the actuation member 436. The body482 houses a spring 486 operably connected with a pin 488. The spring486 acts to force a distal end portion 490 of the pin 488 against thearcuate edge 452 of the pivot member 448 and into the apertures 462located therein. A proximal end portion 492 of the pin 488 is connectedwith a L-shaped bracket 494. A portion of the L-shaped bracket extendsthrough a slot 496 in a rear side of the actuation member 436 and isconnected with a slider handle 498. The slider handle 498 is adapted toslide along the outer surface of the of the actuation member 436. Assuch, the pin 488 can be disengaged from the apertures 462 in the pivotmember 448 by moving the slider handle 498 in a direction away from thearcuate edge 452 of the pivot member 448.

As mentioned above, the pivotal position of the actuation member 436relative to the resistance arm assembly 438 can be adjusted to configurethe leg developer assembly 148 for various different exercises. Forexample, when pivoting the actuation member 436 from a first pivotalposition to a second pivotal position relative to the resistance armassembly, a user can move the slider handle 498 to disengage the pin 488from the pivot member 448 of the resistance arm assembly 438. Whileholding the pin in disengagement from the pivot member, the actuationmember 436 can be pivoted about the leg developer axle 440 to the secondpivotal position. Once the actuation member is in the second position,the slider handle 498 can be released, which allows the spring 486 toforce the pin 488 back into engagement with the pivot member 448. If thepin 488 is aligned with one of the apertures 462 in the arcuate edge 452of the pivot member 448, the pin will extend into one of the apertures,locking the actuation member 436 into the second position. If the pin488 is not aligned with one of the apertures 462, the pin will be forcedagainst the arcuate edge 452 of the pivot member 448. The actuationmember can then be pivoted up and down until the pin is aligned with andforced into one of the apertures.

As shown in FIGS. 4A, 4C, 4D, 5, and others, the leg developer assembly148 also includes a pair of upper roller pads 500 rotatably supported onright and left upper roller pad support members 502, 504 extendingoutwardly from the right and left axle brackets 442, 444, respectively.Similarly, a pair of lower roller pads 506 are rotatably supported onright and left lower roller pad support members 508, 510 extendingoutwardly from opposing sides of the actuation member 436. The rollerpads are adapted to support a user's legs when performing leg extensionand leg curl exercises.

As previously mentioned, the leg developer assembly 148 can beconfigured to perform various exercises. For example, as shown in FIGS.2A and 2B, the leg developer assembly is configured for leg extensionand leg curl exercises, respectively. In both configurations, theresistance cables 144 extending from the arm assemblies 124 are routedpartially around the leg station pulleys 260, 262 and are connected withthe shaft 470 in the lower end portion of the resistance arm 450. Asshown in FIG. 2A, a user can perform leg extension exercises by placingthe back side of his knees on top of the upper roller pads 500 and thefront side of his ankles behind the lower roller pads 506. Once inposition, the user can extend his legs in upward in the direction shownin FIG. 2A. To configure the leg develop assembly for leg extensionexercises, the user can move the slider handle 498 to disengage the legdevelop pop-pin 446 from the resistance arm assembly 438 and pivot theactuation member 436 upward to the position shown in FIG. 2B. The usercan then lie on the bench 110 with the front side of his legs positionedon top of upper roller pads 500 and the rear side of ankles positionedunder the lower roller pads 506. Once in position, the user can thenpivot his ankles upward in the direction shown in FIG. 2B.

As previously mentioned, the exercise device 100 can be configured forvarious types of exercises. In addition, various types of exerciseaccessories can be removably attached to exercise device. Moreparticularly, as shown in FIGS. 5A and 5F, the exercise device includesa support member 512 connected with and supported between the right andleft axle brackets 442, 444 extending from the second end portion 120 ofthe seat rail 116. The support member 512 is adapted to receive supportposts 514 connected with various types of exercise accessories, such asa preacher curl accessory as described in more detail below. A pop-pin516 connected with the support member 512 is adapted to engage aperturesin the support post 514 to allow for vertical height adjustment of theexercise accessory.

As previously mentioned, the exercise device 100 includes adjustable armassemblies 124. More particularly, as shown in FIGS. 1A-1D and others,the exercise device includes right and left arm assemblies 518, 520adjustably connected with the frame. The adjustable arm assemblies 518,520 and the cable-pulley assembly 126 provide a user interface with theresistance system 128. In use, actuation devices can be connectedresistance cables extending from the arm assemblies. As discussed inmore detail below, the vertical positions of the arm assemblies can beselectively adjustable. In addition, the right and left arm assembliescan each include a multi-axis locking mechanism 522 that allows a userto pivot each arm assembly in vertical and horizontal directionssimultaneously. For clarity purposes, the right and left arm assembliesare depicted in FIGS. 9-12C and others without showing a multi-axisrelease mechanism. Embodiments of the multi-axis release mechanism asdiscussed in detail below with reference to FIGS. 13A-13C.

Although the following description refers to figures depicting mainly tothe components of the right arm assembly 518, it is to be appreciatedthat the left arm assembly 520 is substantially a mirror image of theright arm assembly, and as such, includes the same components as theright arm assembly, which operate in relation with each other and withthe other components of the exercise device as the right arm assembly.

As shown in FIGS. 11-11B, the resistance cables 144 extend from thecable-pulley assembly 126 on the frame 102 and through the armassemblies 124. As such, the arm assemblies each include an arrangementof pulleys to guide the resistance cables. More particularly, the rightand left arm assemblies each include a distal pulley housing 524rotatably connected with an arm member 526. In turn, the arm member isrotatably connected with a proximal pulley assembly 528. As shown inFIGS. 9 and 10, the distal pulley housing 524 can rotate relative thearm member 526 in directions A and B. Rotation of the distal pulleyhousing helps to align the resistance cables with the actuation device,as discussed in more detail below. The distal pulley housing 524rotatably supports first and second distal pulleys 530, 532 that helpguide the resistance cables 144 through the arm assemblies 124.

As shown in FIG. 1D, 9, and 10-10A2, the right and left arm assemblies518, 520 are coupled with the right and left upright members 192, 194,respectively, through arm slider assemblies 534 that provide selectivevertical positioning of the arm assemblies. More particularly, theproximal pulley assemblies 528 of each arm assembly are connected withslider members 536. Each slider member 536 defines a hollow crosssection that is adapted to receive the upright members 192, 194 suchthat the slider members can slide up and down along the length theupright members. As shown in FIGS. 10-10A2, each arm slider assembly 534includes a slider pop-pin 538 mounted on the slider member 536. Theslider pop-pin is adapted to selectively engage a plurality of apertures540 on front sides 542 of the upright members 192, 194. As such, theslider pop-pin 538 allows a user to selectively adjust the verticalposition of the arm assemblies 518, 520 along the length of the uprightmembers 192, 194 by moving the slider members 536 along the length theof the upright members and selectively engaging the slider pop-pin witha selected one of the apertures 540 located at a desired verticalposition. For example, FIG. 10A 1 shows the slider member 536 lockedinto position on the right upright member 192 with the slider pop-pin538 engaged with one of the apertures 540. FIG. 10A 2 shows the sliderpop-pin 538 disengaged from the apertures 540 so the slider member 536is free to move up and down along the right upright member 192.

As previously mentioned and as discussed below with reference to FIGS.10-13C, the right and left arm assemblies 518, 520 can each includemulti-axis locking mechanisms 522 that allow a user to pivot each armassembly in vertical and horizontal directions simultaneously. Moreparticularly, the multi-axis locking mechanism 522 is operable to allowthe arm assembly 124 to simultaneously pivot about a first axis 544defined by a pivotal connection between the slider assembly 534 and theproximal pulley assembly 528 (for horizontal pivoting), and a secondaxis 546 defined by a pivotal connection between the proximal pulleyassembly 528 and the arm member 526 (for vertical pivoting). As such, auser can operate the multi-axis locking mechanism to allow a distal endportion 548 of the arm assembly 124 to move right or left and up or downat the same time. In one particular implementation, the distal pulleyhousing 524 may be moved to various positions in an arcuate path definedby approximately 90° horizontal movement and approximately 180° verticalmovement.

As previously mentioned, the proximal pulley assembly 528 is pivotallyconnected with the slider member 536 through a first axle 550, whichdefines the first pivot axis 544. As shown in FIG. 11A, the first axle550 is substantially vertically oriented and rotatably received within acylindrically-shape first axle housing 552 connected with a horizontalselector plate 554 and a support bracket 556. Both the horizontalselector plate 554 and the support bracket 556 are connected with andextend outward from the slider member 536. From the slider member 536,the support bracket 556 extends along a bottom side of the horizontalselector plate 554. The first axle 550 is connected with and extendsalong an outer edge of the support bracket 556 and through thehorizontal selector plate 554. As shown in FIGS. 10-11B, the proximalpulley assembly 528 includes a proximal pulley housing 558 having afirst side 560 and a second side 562 rotatably supporting a proximalpulley 564 therebetween. A first ledge 566 on the proximal pulleyhousing 558 supports an axle plate 568 connected with a bottom endportion of the first axle 550. A second ledge 570 on an upper portion ofthe proximal pulley housing 558 supports a pop-pin support member 572.The pop-pin support member 572 is substantially C-shaped and includes alower side 574 connected with the second ledge 570 and an upper side 576extending rearward over the top of the horizontal selector plate 554. Asshown in FIG. 1A, the upper side 576 of the pop-pin support member 572is connected with an upper end portion of the first axle 550. As such,the proximal pulley assembly 528, and in turn, the arm assembly 124 canpivot in both right and left directions about the first axle 550.

As shown in FIGS. 9, 10, and 11-11B, each arm assembly 124 includes afirst pop pin 578 to select the horizontal pivotal position of the armassembly. More particularly, the first pop-pin 578 is supported on theupper side 576 of the pop-pin support member 572 and is adapted toengage a plurality of apertures 580 in the horizontal selector plate554. As shown in FIG. 11 and others, the apertures 580 arecircumferentially spaced and are located adjacent an arcuate edge 582 ofthe horizontal selector plate 554. As described in more detail below,the first pop-pin can be used to selectively engage the apertures 580 inthe horizontal selector plate 554 to lock the arm assembly 124 in adesired pivotal orientation relative to the horizontal selector plate.First and second 584, 586 stops extending upward from the horizontalselector plate 554 are adapted to engage the upper side 576 of thepop-pin support member 572 to limit the range of pivotal movement of thearm assembly about the first axis 544 in right and left directions.

As previously mentioned, each arm assembly 124 is also pivotallyconnected with the proximal pulley assembly 528. As shown in FIGS.10-11B, first and second arm support members 588, 590 extendingrearwardly from the arm member 526 are pivotally connected with pins 592extending outward from the first and second sides 560, 562 of theproximal pulley housing 558, defining the second pivot axis 546. Assuch, the arm member, and in turn, the arm assembly can pivot up anddown about the second axis.

As shown in FIGS. 9 and 11A-11B, each arm assembly 124 includes a secondpop pin 594 to select the vertical pivotal position of each armassembly. The second pop-pin 594 is supported on the first arm supportmember 588 and is adapted to selectively engage apertures 596 in thefirst side 560 of the proximal pulley housing 558. As described in moredetail below, the second pop-pin can be used to selectively lock the armassembly in a desired pivotal orientation relative to the proximalpulley housing 558. Upper and lower stops 598, 600 extending outwardfrom the first side 560 of the proximal pulley housing 558 are adaptedto engage the first arm support member 588 to limit the range of pivotalmovement of the arm assembly about the second axis in upward anddownward directions.

As previously mentioned, the arm assemblies 124 can include multi-axisrelease mechanisms 522 that allows a user to disengage the first andsecond pop-pins 578, 594 simultaneously from their respective apertures580, 596, which allows the arm assemblies to simultaneously pivot aboutthe first and second axes 544, 546, as illustrated in FIGS. 12A-12C. Itis to be appreciated that various embodiments of the multi-axis releasemechanism can be used to disengage the first and second pop-pins. Forexample, FIGS. 13A-13C illustrate three alternative embodiments of amulti-axis pivot mechanism operable to disengage the first and secondpop-pins from their respective apertures. It is also to be appreciatedthat each pop pin may be configured for individual activation. In suchan arrangement, the user would likely move the arm vertically andhorizontally in separate motions.

As shown in FIG. 13A, the multi-axis release mechanism 522 includes alever member 602 pivotally connected with a lever axle 604 supported bya mounting block 606 on a top side 608 of the arm member 526. Adiscussed in more detail below, the lever member is connected with thefirst and second pop-pins 578, 594 through first and second cables 610,612. The lever member can be pivoted to pull the cables, which in turn,disengages the pop-pins from respective apertures to allow the armassembly to simultaneously pivot about the first and second axes. Asshown in FIG. 13A, the lever member 602 is substantially L-shaped andincludes a handle portion 614 connected with a puller portion 616supporting a cable connection plate 618. A first cable conduit 620,which houses the first cable 610, extends from the first pop-pin 578 toa cable guide block 622 connected with the top side of the arm member526. In addition, a second cable conduit 624, which houses the secondcable 612, extends from the second pop-pin to the cable guide block 622.

As shown in FIGS. 11A and 13A, the first pop-pin 578 includes acylindrically-shaped body 626 housing a spring 628 operably connectedwith a pin 630. The spring 628 acts to force the pin 630 against thehorizontal selector plate 554. A first end 632 of the first cable isconnected with the pin 630 and extends from the first pop-pin body 626and through the first cable conduit 620. The first cable 610 exits thefirst cable conduit 620 and extends through a first aperture 634 in thecable guide block 622 to a second end 636 connected with the cableconnection plate 618. As discussed in more detail below, the pin 630 canbe disengaged from apertures 580 in the horizontal selector plate 554 bypivoting the lever member 602, which in turn, pulls on the first cable610 and the pin 630 away from the horizontal selector plate, whichallows the arm assembly 124 to pivot about the first axis 544.

With reference to FIGS. 11A, 12A, 12B, and 13A, when moving the armassembly 124 from a first pivotal position to a second pivotal positionrelative to the first axis 544, a user can pivot the lever member 602 todisengage the pin 630 from the horizontal selector plate 554. Whileholding the pin in disengagement from the horizontal selector plate, thearm assembly 124 can be pivoted about the first axis 544 to the secondpivotal position. Once the arm assembly is in the second pivotalposition, the lever member 602 can be released, which allows the spring628 to force the pin 630 back into engagement with the horizontalselector plate 554. If the pin 630 is aligned with one of the apertures580 in the horizontal selector plate, the pin will extend into one ofthe apertures, locking the arm assembly 124 into the second pivotalposition. If the pin 630 is not aligned with one of the apertures 580,the pin will be forced against the horizontal selector plate 554. Thearm assembly 124 can then be pivoted right and left until the pin isaligned with and forced into one of the apertures.

As shown in FIGS. 11B and 13A, the second pop-pin 594 includes acylindrically-shaped body 638 housing a spring 640 operably connectedwith a pin 642. The spring 640 acts to force the pin 642 against thefirst side 560 of the proximal pulley housing 558. A first end 644 ofthe second cable is connected with the pin 642 and extends from thesecond pop-pin body 638 and through the second cable conduit 624. Thesecond cable 612 exits the second cable conduit 624 and extends througha second aperture 646 in the cable guide block 622 to a second end 648connected with the cable connection plate 618. As discussed in moredetail below, the pin 642 can be disengaged from apertures 596 in firstside 560 of the proximal pulley housing 558 by pivoting the lever member602, which in turn, pulls on the second cable 612 and the pin 642 awayfrom the proximal pulley housing, which allows the arm assembly 124 topivot about the second axis 546.

With reference to FIGS. 11B, 12B, 12C, and 13A, when moving the armassembly 124 from a first pivotal position to a second pivotal positionrelative to the second axis 546, a user can pivot the lever member 602to disengage the pin 642 from the proximal pulley housing 558. Whileholding the pin in disengagement from the proximal pulley housing, thearm assembly 124 can be pivoted about the second axis 546 to the secondpivotal position. Once the arm assembly is in the second pivotalposition, the lever member 602 can be released, which allows the spring640 to force the pin 642 back into engagement with the proximal pulleyhousing 558. If the pin 642 is aligned with one of the apertures 596 inthe proximal pulley housing, the pin will extend into one of theapertures, locking the arm assembly 124 into the second pivotalposition. If the pin 642 is not aligned with one of the apertures 596,the pin will be forced against the proximal pulley housing 558. The armassembly 124 can then be pivoted up and down until the pin is alignedwith and forced into one of the apertures.

Referring to FIGS. 11A, 11B, 12A-12C, and 13A, to operate the firstembodiment of the multi-axis release mechanism 522, a user applies aforce to the lever member 602 to move the handle portion 614 toward thetop side 608 of the arm member 526, causing the lever member to pivotabout the lever axle 604. In turn, the cable connection plate 618 on thepuller portion 616 of the lever member 602 moves away from the cableguide block 622. As such, the cable connection plate 618 pulls on thefirst ends 632, 644 of the first and second cables 610, 612, causing thefirst and second pop-pins to disengage from the horizontal selectorplate 554 and the proximal pulley housing 558, respectively. While thefirst and second pop-pins are disengaged, the user can pivot the armassembly 124 about the first and second axes 544, 546 at the same time.Once the arm assembly is in the desired position, the handle portion 614of the lever member 602 can be released. The springs 628, 640 in thefirst and second pop-pins 578, 596 then force the pins 630, 642 toengage apertures 580, 596 in the horizontal selector plate and theproximal pulley housing, respectively, which locks the arm assembly inthe desired position. As the springs move the pins back toward thehorizontal selector plate and proximal pulley housing, the first andsecond cables pull the cable connection plate 618 back toward the cableguide block 622, which in turn, causes the lever member 602 to pivotabout the lever axle, moving the handle portion upward 614 from the topside 608 of the arm member 526.

A second embodiment of the multi-axis release mechanism 522′ is shown inFIG. 13B. The second embodiment 522′ includes a handle 650 connectedwith an arm slider member 652, as opposed to the lever member 602described above with reference to the first embodiment 522, to operatethe first and second pop-pins 578, 594. More particularly, the armslider member 652 defines a hollow cross section that is adapted toreceive the arm member 526 such that the slider member can slide backand forth along the length of the arm member. The handle 650 defines asubstantially square-shaped loop that surrounds the outer periphery ofthe arm slider member 652 and is connected with two opposing sides ofthe slider member. The second ends 636, 648 of the first and secondcables 610, 612 are connected with a cable connection plate 654 mountedon a top side 656 of the arm slider member 652.

To operate the second embodiment of the multi-axis release mechanism522′, a user applies a force to the handle 650 to move the arm slidermember 652 along the arm member 526 away from the cable guide block 622.In turn, the cable connection plate 654 on the arm slide member 652moves away from the cable guide block 622. As such, the cable connectionplate 654 pulls on the first ends 632, 644 of the first and secondcables 610, 612, causing the first and second pop-pins to disengage fromthe horizontal selector plate 554 and the proximal pulley housing 558,respectively. While the first and second pop-pins are disengaged, theuser can pivot the arm assembly 124 about the first and second axes 544,546 at the same time. Once the arm assembly is in the desired position,the handle 650 can be released. The springs 628, 640 in the first andsecond pop-pins 578, 594 then force the pins 630, 642 to engageapertures 580, 596 in the horizontal selector plate and the proximalpulley housing, respectively, which locks the arm assembly in thedesired position. As the springs move the pins back toward thehorizontal selector plate and proximal pulley housing, the first andsecond cables pull the cable connection plate 654 back toward the cableguide member 622, which in turn, pulls the arm slider member 652 towardthe cable guide member 622. The cable guide member can also act as astop to limit the travel of the arm slider member toward the proximalend of the arm assembly.

FIG. 13C illustrates a third embodiment of a multi-axis releasemechanism 522″ that is substantially similar to the second embodiment522′. However, the third embodiment 522″ includes a handle post 658connected with the top side of this arm slider member 652, as opposed tothe handle 650 described above with reference to the second embodiment522′. As such, a user applies a force to the handle post 658 to move thearm slider member 652 and operate the first and second pop-pins 578,594.

With reference to FIGS. 2A-2H, the following provides a briefdescription of some of the various exercises that can be performed onthe exercise device 100 as well as operation of various component on theexercise device in light of the previously described structural details.

As shown in FIG. 2A, the exercise device 100 is configured for legextension exercises. The back support 112 on the bench frame 104 islocked in an upright position relative to the bench seat 114 with theback support pop-pin 410. The arm assemblies 518, 520 are locked inrelatively low vertical positions on the right and left upright members192, 194 with the slider pop-pins 538 mounted on the slider members 536.Using the multi-axis release mechanism 522, the arm assemblies areoriented with the arm members 526 angled downward and inward toward eachother. The resistance cables 144 extend from the distal pulley housings524 of each arm assembly 518, 520, around the leg station pulleys 260,262, and are connected with the shaft 470 on the resistance arm 450. Auser places his body on the exercise device as illustrated in FIG. 2Aand proceeds to move his legs in the directions shown.

As shown in FIG. 2B, the exercise device 100 is configured for leg curlexercises. The back support 112 on the bench frame 104 is locked in adownward position with the back support pop-pin 410 parallel with thebench seat 114. The arm assembly positions and resistance cableconfigurations are the same as described above with reference to FIG.2A. The actuation member 436 is locked into position with the legdeveloper pop-pin to extend forward from the forward bench support 122.A user places his body on the exercise device as illustrated in FIG. 2Band proceeds to move his legs in the directions shown.

As shown in FIG. 2C, the exercise device 100 is configured for leg pressexercises. The bench seat 114 and back support 112 are locked intoposition with the swivel pop-pin 392 wherein the user is facing in arearward direction toward the main frame 106. The bench seat pop-pin 348is configured to allow the bench seat to freely roll back and forthalong the length of the seat rail 116. The resistance cables 144extending from the arm assemblies 518, 520 are connected with theeyelets 432 on the bench seat 114. A user places his body on theexercise device as illustrated in FIG. 2C and proceeds to press his feetagainst the foot plates 212, 218 to move the bench seat in thedirections shown.

As shown in FIG. 2D, the exercise device 100 is configured for pull downexercises. The back support 112 on the bench frame 104 is locked in adownward position parallel with the bench seat 114 with the back supportpop-pin 410. The arm assemblies 518, 520 are locked in relatively highvertical positions on the right and left upright members 192, 194 withthe slider pop-pins 538 mounted on the slider members 536. Using themulti-axis release mechanism 522, the arm assemblies are oriented withthe arm members 526 angled downward and inward toward each other. A userplaces his body on the exercise device as illustrated in FIG. 2D, graspsthe handles 146 connected with the resistance cables 144 extending fromthe arm assemblies, and proceeds to pull with his arms in the directionsshown.

As shown in FIGS. 2E and 2F, the exercise device 100 is configured forbench press exercises. In FIG. 2E, the back support 112 on the benchframe 104 is locked in an upright position with the back support pop-pin410. The bench seat 114 and back support 112 are locked in anorientation with the swivel pop-pin 392 wherein the user is facing in aforward direction away from the main frame 106. The arm assemblies 518,520 are locked in intermediate vertical positions on the right and leftupright members 192, 194 with the slider pop-pins 538 mounted on theslider members 536. Using the multi-axis release mechanism 522, the armassemblies are oriented with the arm members 526 angled upward andoutward away from each other. A user places his body on the exercisedevice as illustrated in FIG. 2E, grasps the handles 146 connected withthe resistance cables 144 extending from the arm assemblies, andproceeds to push with his arms in the directions shown. In FIG. 2F, theexercise device 100 is configured for an inclined bench press exercise.As such, the back support 112 is locked in an inclined position with theback support pop-pin 410. The arm assemblies 518, 520 are locked in arelatively low vertical position on the right and left uprights 192, 194with the slider pop-pins 538.

As shown in FIG. 2G, the exercise device 100 is configured for preachercurl exercises with a preacher curl accessory 660 connected with thebench frame 104. More particularly, the preacher curl accessory includesan inclined preacher curl pad 662 connected with a support post 664. Thesupport post 664 is inserted into the support member 512 supportedbetween the right and left axle brackets 442, 444 extending from thesecond end portion 120 of the seat rail 116 as described above withreference to FIGS. 5 and 5F. The pop-pin 516 on the support member 512is adapted to engage apertures in the support post 664 to allow forselective height adjustment of the preacher curl pad 662. The armassemblies 518, 520 and resistance cables 144 are oriented in the samemanner as described with reference to FIG. 2A, except handles 146 areconnected with the resistance cables. A user places his body on theexercise device as illustrated in FIG. 2G, grasps the handles andproceeds to pull with his arms in the directions shown.

As shown in FIG. 2H, the exercise device 100 is placed in the storageconfiguration with the seat rail 116 held in an upright pivotal positionby the first seat rail pop-pin 234. As shown in FIG. 2H, when theexercise device is placed in the storage configuration, the user canstand on the platform plate 154 and perform various types of exercises,such as pull downs, curls, and shoulder exercises.

As previously mentioned, the user actuates the resistance system 128through the cable-pulley system 126. As shown in FIGS. 1B, 1D, and 14,the cable-pulley system 126 can include separate right and leftcable-pulley systems 666, 668 that couple the right and left resistancesystems 130, 132 with resistance cables 144 extending from distal endportions of the right and left arm assemblies 518, 520, respectively.Although the following description refers to figures depicting mainly tothe components of the right cable-pulley system 666, it is to beappreciated that the left cable-pulley system 668 is substantially amirror image of the right cable-pulley system, and as such, includes thesame components as the cable-pulley system, which operate in relationwith each other and with the frame as the right cable-pulley system.

FIGS. 1B, 1D, 11, 11A and 14 illustrate the cable routing from the armassemblies 518, 520 to the resistance systems 130, 132. From a first end670, a first resistance cable 672 extends through a cable stop 674engaged with the first and second distal pulleys 530, 532 of the armassembly 124 and through the inside of the arm member 526 to theproximal pulley 564. The cable stop is connected with the firstresistance cable and prevents the cable from being withdrawn into thearm assembly. The first resistance cable 672 wraps around a portion ofthe proximal pulley 564 and extends downward to and wraps around aportion of a lower directional pulley 676. The lower directional pulleysare rotatably supported by the lower end portions of the right and leftupright members 192, 194. The first resistance cable 672 extends upwardfrom the lower directional pulley 676 to a first upper directionalpulley 678. The first upper directional pulleys are rotatably supportedbetween the front and rear pulley plates 200, 202 connected with upperend portions of the right and left upright members. The first resistancecable wraps partially around the first upper directional pulley 678 andextends downward to a floating pulley 680. The first resistance cablewraps partially around the floating pulley and extends upward to wrappartially around a second upper directional pulley 682. From the secondupper directional pulley 682, the first resistance cable 672 extendsoutward to a third upper directional pulley 684. The second and thirdupper directional pulleys are also rotatably supported between the frontand rear pulley plates connected with upper end portions of the rightand left upright members. The first resistance cable 672 wraps partiallyaround the third upper directional pulley 684 and extends downward,through the first axle housing 552 connected with the arm sliderassembly 534. The first resistance cable extends from the first axlehousing 552 to a second end 686 connected with a cable termination 688.As shown in FIG. 11A, the cable termination 688 abuts the bottom endportion of the first axle housing 552 on the arm assembly. Because bothends of the first resistance cables 672 are terminated on the armassemblies 518, 520, the arm assemblies can move relative to the mainframe 106 without affecting the tension to the first resistance cables.As such, the position of the arm assemblies 518, 520 can be changedwithout actuating the resistance systems 130, 132.

When using the exercise device 100, the user applies a force to eitheror both first resistance cables 672 extending from the arm assemblies518, 520, which pulls the first end 670 of the resistance cable 672 fromthe distal pulley housing 524. Because the second end 686 of the firstresistance cable 672 is terminated at the first axle housing 552,pulling the first end 670 of the first resistance cable from the distalpulley housing 524 causes the floating pulley 680 to move upward.Movement of the floating pulley 680 in the upward direction translatesforces to the resistance system 128 through a second resistance cable690 extending downward from the floating pulley. As previouslymentioned, the resistance systems 130, 132 include transmissions 134 andresistance assemblies 136 having pluralities of selectable resistancepacks 138. The second resistance cable 690 connects the floating pulley680 with the transmission assembly 134, which in turn, is connected withthe resistance assembly 136 through a third resistance cable 692. Assuch, movement of the floating pulley 680 in an upward direction causesthe transmission assembly 134 to apply torsional forces to theresistance assembly 136. As described in more detail below, theplurality of resistance packs 138 of the resistance assembly utilizetorsional springs to provide a selectable level of resistance. As such,the resistance assembly provides resistance to the torsional forcesexerted thereon by the transmission assembly.

Although the following description refers mainly to the components ofthe transmission assembly and resistance assembly associated with theright resistance system 130, it is to be appreciated that thetransmission and resistance assemblies associated with the leftresistance system 132 are substantially mirror images of thetransmission and resistance assemblies of the right resistance system,and as such, include the same components and operate in relation witheach other and with the other components of the exercise device as thetransmission and resistance assemblies of the right resistance system.

As shown in FIGS. 15-15D, the transmission assembly 134 includes atransmission pulley 694 rotatably supported by a transmission axle 696extending from the transmission support member 188 on the frame 106.During exercise, as the user applies a force to the first resistancecable 672, the floating pulley 680 moves upward, and in turn, the secondresistance cable 690 is pulled upward and unwinds from the transmissionpulley 694, causing the transmission pulley to rotate around thetransmission axle in a first direction. Conversely, as the user lessensthe force exerted on the first resistance cable, the resistance assembly136 pulls against the transmission pulley 694 through the thirdresistance cable 692, causing the transmission pulley to rotate aroundthe transmission axle in a second direction opposite the firstdirection. As the transmission pulley 694 rotates in the seconddirection, the second resistance cable 690 pulls the floating pulley 680downward and winds back onto the transmission pulley. In one example,pulling the first resistance cable 672 from the right arm assembly 518pulls the floating pulley 680 of the right cable-pulley system 666upward. As such, the floating pulley pulls against the second resistancecable 690, causing the second resistance cable to unwind from thetransmission pulley 694 of the right resistance system 130, which inturn, causes the transmission pulley to rotate in a clockwise direction(as viewed from the right side of the exercise device). As discussed inmore detail below, rotation of the transmission pulley in the clockwisedirection pulls the third resistance cable 692 and exerts torsionalforces on the resistance assembly. Conversely, releasing the tension onthe first resistance cable 672 allows the right resistance system pullagainst the third resistance cable 692, causing the transmission pulley694 to rotate counterclockwise (as viewed from the right side of theexercise device). Rotation of the transmission pulley in thecounterclockwise direction pulls downward on the second resistance cableand winds the second resistance cable back onto the transmission pulleywhile at the same time pulling the floating pulley downward.

As shown in FIG. 15-15B, a first end 698 of the third resistance cable692 is connected with a cable termination member 700 extending outwardfrom a side of the transmission pulley 694. As such, the as thetransmission pulley rotates, the cable termination member 700 alsorotates around the transmission axle 696 along with the first end 698 ofthe third resistance cable 692. A second end 702 of the third resistancecable 692 is connected with a linearizing cam 704 on the resistanceassembly 136. As discussed in more detail below, when the transmissionpulley 694 rotates in a direction that pulls upward on the thirdresistance cable 692, the linearizing cam 704 imparts a torsional forceto selected resistance packs 138.

As shown in FIGS. 15-15E, the transmission assembly 134 includes cams706 connected with and adapted to rotate with the transmission pulley694 around the transmission axle 696. The three cams 706 areindividually referred to herein as a first cam 708, a second cam 710,and a third cam 712. A cam selector mechanism 714 is connected with anend portion of the transmission axle 696 and provides the ability toselectively position the cams 706 along the length of the transmissionaxle. More particularly, the cam selector mechanism 714 allows a user toselectively position any one of the three cams 706 in alignment with thethird resistance cable 692 extending from the cable termination member700. When one of three cams is aligned to engage the third resistancecable, the cam is referred to as a “selected” cam 716. As such, when thefloating pulley 680 is pulled upward to cause the transmission pulley694 to rotate, the selected cam 716 will rotate with the transmissionpulley and engage the third resistance cable. As the selected cam 716rotates, a portion of the third resistance cable wraps onto an outer camsurface of the cam. As discussed in more detail below, the shape of theselected cam affects the shape of the force curve.

As previously mentioned, the three cams 706 are slidingly mounted on thetransmission axle 696 and as such, would not rotate with thetransmission pulley 694 unless otherwise restrained. As shown in FIGS.15 and 15E, a cam retention rod 718 located radially outward from thetransmission axle 696 extends axially outward from the transmissionpulley 694 parallel to the transmission axle. The cam retention rod 718extends through the cams 706 and forces the cams to rotate with thetransmission pulley. The cams 706 are connected with each other and areadapted to slide back and forth along the length of the transmissionaxle 696 and the cam retention rod 718. A cam hub 720 including a firstflange 722 and a second flange 724 separated by a cylindrical centerportion 726 adapted to receive the transmission axle is connected withthe first cam 708. The diameter of the first flange 722 and the secondflange 724 of the cam hub are larger than the diameter of the centercylindrical portion 726, defining a channel 728 between the first andsecond flanges. As discussed below, the cam selector mechanism 714 isconnected with the channel 728 on the cam hub to provide for selectiveaxial position of the cams 706 along the transmission axle.

As shown in FIGS. 15 and 15B, the cam selector mechanism 714 includes amounting plate 730 connected with an outer end portion of thetransmission axle 696. The mounting plate 730 supports a selector block732 having three apertures 734 located therein. The three apertures 734are individually referred to herein as a first aperture 736, a secondaperture 738, and a third aperture 740. A C-shaped slider bracket 742adapted to slide back and forth along the length of the selector block732 includes a top side 744 adjacent to a top side 746 of the selectorblock 732 and a bottom side 748 adjacent to a bottom side 750 of theselector block 732. A cam pop-pin 752 mounted on the top side 744 of theslider bracket 742 is adapted to engage the three apertures 734 on theselector block 732. A tongue 754 extending upward from the top side 744of the slider bracket 742 is connected with a first end portion 756 of atie rod 758. From the first end portion 756, the tie rod 758 extendsthrough a tie rod cylinder 760 connected with the mounting plate 730 toa second end portion 762 connected with an engagement member 764,connected with the channel 728 in the cam hub 720. As such, the tie rod758 and engagement member 764 connect the slider bracket 742 with thethree cams 706 through the cam hub 720. Therefore, when the sliderbracket 742 moves back and forth along the selector block 732, the tierod 758 pushes or pulls the cam hub 720 and cams 706 back and forthalong the length of the transmission axle 696 and the cam retention rod718.

The slider bracket 742 the selector mechanism 714 can be used toposition any one of the three cams 706 in alignment with the thirdresistance cable 692. Once the selected cam is aligned with the thirdresistance cable, the slider bracket 742 and cams 706 can be locked inposition by engaging the cam pop-pin 752 with a corresponding aperture734 on the selector block 732. In the embodiment shown in FIG. 16A, whenthe cam pop-pin 752 is engaged with the first aperture 736 in theselector block 732, the first cam 708 is the selected cam 716. Inaddition, when the cam pop-pin is engaged with the second aperture 738in the selector block, the second cam 710 is the selected cam as shownin FIG. 16B. Further, when the cam pop-pin is engaged with the thirdaperture 740 in the selector block, the third cam 712 is the selectedcam as shown in FIG. 16C.

As previously mentioned, the shape of the outer circumferential surfacesof the cams can affect the shape of the force curve. The contour orshape of the outer surface of each cam is defined by radii of varyinglength extending from the center of the cam (i.e. the transmission axle)to an outer circumference of the cam. It is to be appreciated thatembodiments of the present invention can utilize various types of camshaving differently shaped outer cam surfaces and are not limited to thatwhich are disclosed herein. As shown in FIG. 16D, a first radialdistance 766 from a center longitudinal axis 768 of the transmissionaxle 796 to an outer circumference 770 of the transmission pulley 694 isgreater than a second radial distance 772 from the center longitudinalaxis of the transmission axle to an outer circumference 774 of theselected cam 716, which could be any one of the three cams shown. Thedifference between the first and second radial distances provides amechanical advantage between a first force exerted on the secondresistance cable 690 (acting to rotate the transmission pulley) and asecond force exerted on the third resistance cable 692 as the thirdresistance cable wraps onto the outer circumferential surface of theselected cam.

It is to be appreciated that the mechanical advantage between forcesexerted on the second and third resistance cables 690, 692 can increaseas the third resistance cable 692 wraps onto the outer circumferentialsurface 774 of selected cam 716 at locations defined by a progressivelydecreasing radial distance from the center longitudinal axis of thetransmission axle. In other words, a first force applied to the secondcable acting to rotate the transmission pulley 694 will result in asecond force exerted on the third resistance cable 692 thatprogressively increases as the third resistance cable wraps onto theouter cam circumferences 774 at locations defined by a progressivelydecreasing radial distance from the center longitudinal axis 768 of thetransmission axle 696. Conversely, the mechanical advantage betweenforces exerted on the second and third resistance cables can decrease asthe third resistance cable wraps onto the outer circumferential surfaceof selected cam at locations defined by a progressively increasingradial distance from the center longitudinal axis of the transmissionaxle. In other words, a first force applied to the second cable actingto rotate the transmission pulley will result in a second force exertedon the third resistance cable that progressively decreases as the thirdresistance cable wraps onto the outer cam surface at locations definedby a progressively increasing radial distance from the centerlongitudinal axis of the transmission axle. Further, the mechanicaladvantage between forces on the second and third resistance cables willnot change as third resistance cable wraps onto the outercircumferential surface of selected cam at locations defined by aconstant radial distance from the center longitudinal axis of thetransmission axle.

FIGS. 17A-17C illustrate the contours or shapes of the outercircumferential surfaces of the first cam 708, second cam 710, and thirdcam 712 for one embodiment of the present invention. As illustrated,each cam includes an arcuate outer surface 776 including a firstengagement region 778, a second engagement region 780, and a thirdengagement region 782 defined by varying radial distances from thecenter longitudinal axis 768 of the transmission axle 696. The threeengagement regions of the outer cam surfaces are also defined below inthe context of describing the rotation of the transmission pulley 694 ofthe right resistance system 130. The transmission pulley 694 is shown inFIGS. 18A-18F as rotating in a clockwise direction (as viewed from theright side of the exercise device) in response to an upward movement ofthe floating pulley 680. As the transmission pulley begins to rotate inthe clockwise direction, the third resistance cable first 692 wraps ontothe first engagement region of the selected cam surface. As thetransmission pulley continues its rotation in the clockwise direction,the third resistance cable wraps onto the second engagement region ofthe selected cam surface. Further, as the transmission pulley nears fullrotation in the clockwise direction, the third resistance cable wrapsonto the third engagement region of the selected cam surface. It is tobe appreciated that the references to the three engagement regions arefor descriptive purposes and should not be construed to limit the sizesand shapes of the cams used with the present invention.

As shown in FIGS. 17A and 18A-18B, a radial distance R from the centerlongitudinal axis 768 of the transmission axle 696 to the outer arcuatesurface 776 of the first cam 708 increases from the first engagementregion 778 to the second engagement region 780. The radial distance Ralso increases from the second engagement region 780 to the thirdengagement region 782. As shown in FIGS. 18A-18B, as the thirdresistance cable 692 wraps onto the first cam 708 as the first camrotates clockwise with the transmission pulley 694, the mechanicaladvantage between forces on the second and third resistance cables 690,692 will decrease, resulting in a progressive force curve. In otherwords, a user of the exercise device will encounter progressivelygreater resistance as the user pulls the first end of the firstresistance cable 672 from the distal pulley housing 524 on the armassembly 124. As shown in FIGS. 17B and 18C-18D, the radial distance R′the center longitudinal axis 768 of the transmission axle 696 to theouter arcuate surface 776 of the second cam 710 remains constant fromthe first engagement region 778 to the second engagement region 780, andfrom the second engagement region to the third engagement region 782. Asshown in FIGS. 18C-18D, as the third resistance cable 692 wraps onto thesecond cam 710 as the second cam rotates clockwise with the transmissionpulley 694, the mechanical advantage between the forces on the secondand third resistance cables will remain constant, resulting in a linearforce curve. In other words, a user of the exercise device willencounter a substantially constant resistance as the user pulls thefirst end of the first resistance cable 672 from the distal pulleyhousing 524 on the arm assembly 124. As shown in FIGS. 17C and 18E-18F,the radial distance R″ the center longitudinal axis 768 of thetransmission axle 696 to the outer arcuate surface 776 of the third cam712 decreases from the first engagement region 778 to the secondengagement region 780, and from the second engagement region 780 to thethird engagement region 782. As shown in FIGS. 18E-18F, as the thirdresistance cable 692 wraps onto the second cam 710 as the second camrotates clockwise with the transmission pulley 694, the mechanicaladvantage between forces on the second and third resistance cables willincrease, resulting in a regressive force curve. In other words, a userof the exercise device will encounter progressively less resistance asthe user pulls the first end of the first resistance cable 672 from thedistal pulley housing 524 on the arm assembly 124.

As previously mentioned, the transmission assembly 134 is connected withthe resistance assembly 136 through the third resistance cable 692. Asshown in FIGS. 15, 15B and 19A-19C, the third resistance cable extendsfrom the first end 698 connected with the cable termination member 760on the transmission pulley 694 to the second end 702 connected with acable termination 784 on the linearizing cam 704 on the resistanceassembly 136. The linearizing cam is rotatably mounted on a resistanceaxle 786 connected with the main frame 106. The resistance assembly alsoincludes a selector mechanism 788 connected with the linearizing cam704. The selector mechanism allows a user to selectively connect adesired number of resistance packs 138 with the linearizing cam. Asdescribed in more detail below with reference to FIGS. 20A-20E andothers, the resistance packs 138 include resilient resistance elements790 that act as torisional springs enclosed within a housing 792. Theresistance elements 790 are connected with center hubs 794, which inturn, are connected with the resistance axle 786. More particularly, thecenter hubs 794 are connected with resistance axle through anarrangement of splines, and as such, do not rotate about the resistanceaxle. As discussed in more detail below, the housings 792 of theresisance packs 138 can be selectively connected with the selectormechanism 788. Therefore, as the linearizing cam 704 and the selectormechanism 788 rotate together, housings of resistance packs connectedwith the selector mechanism also rotate. As the housings rotate, thecenter hubs remain stationary, which causes the torsional springs bestretched within the housings. As the torsional springs stretch, thetorisional springs exert progressively increasing resistive torsionalforces on the linearizing cam, which are translated to the thirdresistance cable.

As previously mentioned, each resistance axle 786 of the right and leftresistance systems supports the linearizing cam 704 as well as theplurality of resistance packs 138. The resistance axles 786 of the rightand left resistance systems 130, 132 are connected with and extendoutward from the right and left rear upright members 178, 180 of theframe 106 described above with reference to FIG. 3A. As shown in FIGS.19A-19C, the linearizing cam 704 is rotateably mounted on the resistanceaxle 786 and is connected with the second end 702 of the thirdresistance cable 692. The connection of the third resistance cable 692with the linearizing cam 704 provides for selective tensioning of thethird resistance cable. As shown in FIGS. 15B and 19C, the linearizingcam 704 includes a first arcuate slot 796 and a second arcuate slot 798.The third resistance cable 692 extending downward from the transmissionassembly 134 wraps around the outer surface of the linearizing cam 704to where the second end 702 of the third resistance cable 692 connectswith the cable termination 784 inside the first arcuate slot 796. Thecable termination 784 is connected with a plate 800 extending between afirst bolt 802 and a second bolt 804. As shown in FIG. 20C, the secondbolt 804 extends through the second slot 798 in the linearizing cam. Thecombination of the first and second bolts and the plate allow thetension of the third resistance cable to be adjusted. For example, whenadjusting the tension in the third resistance cable 692, the first andsecond bolts 802, 804 are loosened so as to allow the second bolt 804,cable termination 784, and plate 800 to pivot around the first bolt 802.The plate 800 can then be pivoted to provide the desired tension on thethird resistance cable 692 through the cable termination 784 connectedwith the plate. Once the desired tension in the third resistance cableis achieved, the first and second bolts are retightened.

As previously mentioned, the selector mechanism 788 is used toselectively connect a desired number of resistance packs 138 with thelinearizing cam 704. Therefore, when tension is placed on the thirdresistance cable 692 that causes the linearizing cam to rotate aroundthe resistance axle 786, the selector plate also rotates along with thehousings 792 of resistance packs 138 connected with the selectormechanism. Due to the resilient construction of the resistance elements790 inside the housings of the resistance packs 138, the resistanceforces exerted by the resistance packs progressively increase as thelinearizing cam rotates. As such, an outer circumferential surface 806of the linearizing cam 704 can be shaped to offset the progressiveincrease in forces exerted by the resistance packs. More particularly,as the third resistance cable 692 unwinds from linearizing cam 704, aradial distance R1, shown in FIG. 15B, from a center longitudinal axis808 of the resistance axle 786 to a location where the third resistancecable separates from the outer surface of the linearizing cam increases.In other words, a first force exerted on the third resistance cable 692that causes the linearizing cam 704 to rotate will result in aprogressively increasing torque exerted on the linearizing cam 704 asthe linearizing cam rotates around the resistance axle 786. As such,although the resistance packs 138 provide a progressively increasingresistance torque as the housings 792 are rotated relative theresistance axle 786, the progressively increasing torque exerted by thethird resistance cable on the linearizing cam results in a substantiallylinear resistance force exerted on the third resistance cable 692. It isto be appreciated that linearizing cams having different outer shapescan be used with the present invention and as such, should not belimited to the shape of the linearizing cam described and depictedherein.

It is to be appreciated that the exercise devices described herein caninclude resistance systems that utilize various types of devices toprovide resistance. For example, FIGS. 20A-20E show one embodiment ofthe resistance pack 138 that can be used with the exercise device 100.The resistance pack 138 is similar the resistance packs disclosed inU.S. Pat. No. 4,944,511, titled “Adjustable Resilient Reel Exerciser,”filed on Jan. 23, 1989; U.S. Pat. No. 5,209,461, titled “ElastomericTorsional Spring Having Tangential Spokes with Varying ElasticResponse,” filed on Jun. 12, 1992; U.S. Pat. No. 6,126,580, titled“Resistance Exercise Machine with Series Connected Resistance Packs,”filed on Aug. 7, 1998; and U.S. Pat. No. 6,440,044, titled “ResistanceMechanism with Series Connected Resistance Packs,” filed on Aug. 1,2000, all of which are hereby incorporated by reference herein.

As previously mentioned, the housing 792 of the resistance pack 138encloses resistance elements 790 that act as torsional springs. In turn,the torsional springs are connected with center hubs 794, which areconnected with the resistance axle 786 through an arrangement ofsplines. As shown in FIGS. 20A-20E, the housing 792 includes a flat,disc-shaped base panel 810 with a first side 812 and a second side 814.A plurality of rigid triangular frames 816 extend outward from each ofthe sides of the base panel, each frame 816 having a tab 818 projectingfrom an outer edge thereof. Although the resistance pack shown in FIGS.20A-20E has eight triangular frames, it is to be appreciated that theresistance pack can have more or less than eight triangular frames. Acircular rim 820 is connected with and extends along the circularperiphery of the base panel 810. As shown in FIGS. 20A-20D, the housing792 also includes a first side wall 822 and a second side wall 824connected with the rim 820 and the base panel 810 on opposite sides ofthe resistance pack. The side walls are substantially circularly-shapedwith a portion of the periphery of each side wall extending beyond therim 820 to form a ledge 826. A connection block 828 having an aperture830 therein extends between the side walls 822, 824 near the ledge 826.As discussed in more detail below, the selector mechanism is adapted toengage the aperture 830 to selectively connect the housing 792 with thelinearizing cam 704.

As shown in FIGS. 20B and 20D, the resistance pack 138 includes tworesistance elements 790. It is to be appreciated that the resistancepack can include more or less than two resistance elements. Aspreviously mentioned, the resistance elements act as torsional springsand may be constructed of a suitable elastomeric substance exhibitingresiliency and resistance to stretching. As shown in FIG. 20E, theresistance elements 790 each include a plurality of spokes 832 connectedwith and extending radially outward from the center hub 794. A pluralityof peripheral portions 834 of the resistance elements 790 extend betweenouter ends of the spokes 832. The center hub 794 may be constructed of arigid material which may be glued or otherwise bonded to the elastomericinner ends of the spokes. As discussed in more detail below, the centerhub 794 also includes splines 836 adapted to engage correspondingsplines 838 the resistance axle 786. The resistance elements areinstalled with the spokes extending between the adjacent triangularframes 816 and with the peripheral portions 834 beneath the tabs 818extending from the triangular frames. As such, one resistance element isadjacent the first side 812 of the base panel 810, and the otherresistance element is adjacent the second side 814. When the housing ofthe resistance pack containing the resistance elements is rotatedrelative to the center hubs of each resistance element, the spokes andthe peripheral portions of the resistance elements are stretched. Theresilient construction of the resistance elements resist stretching ofthe spokes and peripheral portions to provide a resistive force thatopposes the stretching of the arms and peripheral portions. It is toappreciated that the resistive forces increases the more the resistanceelements are stretched. In other words, the more the housing of theresistance pack is rotated relative to the hub, the greater theresistance force.

As previously mentioned, the resistance axle 786 supports thelinearizing cam 704 and the plurality of resistance packs 138. As shownin FIGS. 21A-21E, the plurality of the resistance packs 138 is mountedon a splined portion 838 of the resistance axle 786 extending outwardfrom the linearizing cam 704. The splined portion 838 of the resistanceaxle 786 is adapted to be received within the center hubs 794 of eachresistance pack 138. As such, the center hubs 794 of each resistancepack do not rotate about the resistance axle 786. A stop rod 840 extendsoutward from a bracket 842 connected with the upper cross member 182 onthe main frame 106, discussed above with reference to FIG. 3A. As shownin FIGS. 21A, 21B and 21D, the stop rod 840 extends outward from thebracket 842 and along the ledges 826 of each resistance pack. As shownin FIG. 21A an outer portion of the stop rod 840 extends radially inwardto connect with a distal end portion 844 of the resistance axle 786. Theresistance packs can be placed on the resistance axle so that the whenthe ledges on the resistance packs are in contact with the stop rod, thetorsional spring is slightly stretched, which creates a relatively smallamount of pre-load resistance. The pre-load resistance helps to hold theledges 826 of the resistance packs 138 against the stop rod 840 andpositions the apertures 830 on the connection blocks 828 in a desiredalignment with the selector mechanism 788. As shown in FIGS. 21A and21B, a first resistance pack 846 configured with a pre-load is connectedwith the linearizing cam. As such, the ledges on the resistance packsabut stop rod to the maintain the linearizing cam in a constant initialstarting position when not in use.

As previously mentioned, the selector mechanism 788 is used toselectively connect the housings 792 of a desired number of resistancepacks 138 with the linearizing cam 704. As shown in FIGS. 21A and 21B,the selector mechanism 788 includes a selector plate 848 connected withan outer side of the linearizing cam 704 and extends outward adjacent tothe ledges 826 and connection blocks 828 on the resistance packs 138. Aselector plate support 850 rotatably supported on the distal end portion844 of resistance axle 786 extends radially outward from the resistanceaxle and connects with a distal end portion of the selector plate 848.As such, the selector plate rotates about the resistance axle with thelinearizing cam. As shown in FIGS. 21A, 21B, 21D, and 21E, the selectorplate 848 supports a plurality of knobs 852 having pins 854 extendingtherefrom. The pins 854 are adapted to engage the apertures 830 in theconnection blocks 828 on each resistance pack. For example, moving theknobs 852 toward the resistance packs 138 inserts the pins 854 into theapertures 830 on the connection blocks 828, which connects the housings792 of the resistance packs 138 with the selector plate 848. Therefore,when the knob is moved to insert the pin in the connection block of aresistance pack, the housing of the selected resistance pack rotateswith the selector plate and linearizing cam. As shown in FIGS. 21A and21B, some embodiments of the present invention can include a counterweight 856 extending around the plurality of resistance packs 138opposite from the selector plate 848. The counter weight 856 isconnected with and rotates with the selector mechanism 788 andlinearizing cam 704. As such, the counter weight acts to cancel oreliminate effects from the weight of the selector mechanism as itrotates around the resistance axle.

A description of the operation of the components associated with thecable-pulley system and resistance systems located on the right and leftsides of the exercise device is provided below with reference to FIGS.1A-21E. Descriptions of rotational directions (i.e. clockwise andcounterclockwise) are from a point of reference as viewed from the rightside of the exercise device.

When using right side of the exercise device, the user applies a forceto the first resistance cable 672, pulling the first end 670 of theresistance cable from the distal pulley housing 524 of the right armassembly 518. Because the second end 686 of the first resistance cable672 is terminated in the first axle housing 552 on the right armassembly, pulling the first end of the first resistance cable from theright arm assembly causes the floating pulley 680 of the rightcable-pulley system 666 to move upward. Movement of the floating pulleyin the upward direction causes the second resistance cable 690 to unwindfrom the transmission pulley 694 on the right resistance system 130,which rotates the transmission pulley in a clockwise direction aroundthe transmission axle 696. The three cams 706 also rotate clockwise withthe transmission pulley 694. As such, the third resistance cable winds692 onto the outer cam surface of the selected cam 716. As the thirdresistance cable 692 winds onto the selected cam, the third resistancecable unwinds from the linearizing cam 704, which causes the linearizingcam to rotate counterclockwise around the resistance axle 786. Theselector mechanism 788 and counterweight 856 also rotate with thelinearizing cam along with the housings 792 of the resistance packs 138that have been connected with the selector mechanism. The connectedresistance packs provide a resistance force to the third resistancecable 692 as the linearizing cam of the right resistance system rotatescounter clockwise.

When the user releases the first resistance cable 672, the resistanceelements 790 of selected resistance packs 138 on the right resistancesystem 130 force the housings 792 of the resistance packs to rotatearound the resistance axle 786 with the selector mechanism 788 andlinearizing cam 704 in the clockwise direction until the ledges 826 onthe housings of the resistance packs 138 engage the stop rod 840.Rotation of the linearizing cam 704 in the clockwise direction unwindsthe third resistance 692 from the selected cam, causing the three cams706 and the transmission pulley 694 to rotate counterclockwise. Rotationof the transmission pulley 694 in the counterclockwise direction windsthe second resistance cable 690 back onto the transmission pulley, whichpulls the floating pulley 680 of the right cable-pulley system 666 in adownward direction, which in turn, causes the first resistance cable 672to retract back into the right arm assembly 518.

When using left side of the exercise device, the user applies a force tothe first resistance cable 672, pulling the first end 670 of the firstresistance cable from the distal pulley housing 524 of the left armassembly 520. Because the second end 686 of the first resistance cableis terminated in the first axle housing 552 on the left arm assembly,pulling the first end of the first resistance cable from the left armassembly causes the floating pulley 680 of the left cable-pulley system668 to move upward. Movement of the floating pulley in the upwarddirection causes the second resistance cable 690 to unwind from thetransmission pulley 694, which rotates the transmission pulley 694 in aclockwise direction around the transmission axle 696. The three cams 706also rotate clockwise with the transmission pulley 694. As such, thethird resistance cable 692 winds onto the outer cam surface of theselected cam 716. As the third resistance cable winds onto the selectedcam, the third resistance cable 692 unwinds from the linearizing cam 704of the left resistance system 132, which causes the linearizing cam torotate counterclockwise around the resistance axle 786. The selectormechanism 788 and counterweight 856 also rotate with the linearizing cam704 along with the resistance packs 138 that have been connected withthe selector mechanism. The selected resistance packs provide aresistance force to the third resistance cable as the linearizing cam ofthe left resistance system rotates counter clockwise.

When the user releases the first resistance cable 672, the resistanceelements 790 in the selected resistance packs 138 of the left resistancesystem 132 force the housings 792 of the resistance packs to rotatearound the resistance axle 786 with the selector mechanism 788 andlinearizing cam 704 in the clockwise direction until the ledges 826 onthe housings of the resistance packs engage the stop rod 840. Rotationof the linearizing cam 704 in the clockwise direction unwinds the thirdresistance 692 from the selected cam, causing the three cams 706 and thetransmission pulley 694 to rotate counterclockwise. Rotation of thetransmission pulley in the counterclockwise direction winds the secondresistance cable 690 back onto the transmission pulley, which pulls thefloating pulley 680 of the left cable-pulley system 668 in the downwarddirection, which in turn, causes the first resistance cable to retractback into the left arm assembly 520.

FIGS. 22A-22G show an alternative exercise device 858 conforming toaspects of the present invention. The exercise device allows a user toperform various exercises and includes an adjustable bench assembly 860connected with a main frame 862. The main frame supports adjustable armassemblies 864 and cable-pulley assemblies 866 providing a userinterface with a resistance system 868, which is also supported on themain frame. Structurally, the exercise device of FIGS. 22A-22G variesfrom the devices of FIGS. 1A-1D in several ways. For example, thealternative exercise device 858 does not include a multi-axis releasemechanism for the arm assemblies, an adjustment mechanism to selectivelyadjust the force curve, and a selector mechanism to select the amount ofresistance. Instead, the resistance system 868 of the alternativeexercise device 858 includes right and left resistance systems 870, 872,each utilizing a plurality of removable resistance packs 874 adapted toconnect with each other, enabling the user to change the amount ofresistance. The resistance system is partially covered by shroud members876 supported by the main frame. Each of the right and left resistancesystems also include a tensioning mechanism 878 to adjust the tension ofa portion of the cable-pulley assembly. In addition, the main frame 862of the alternative embodiment 858 is configured differently than theframe of earlier embodiments. For example, the alternative embodimentincludes a forward bench support 880 that automatically folds inwardwhen the exercise device is placed in the storage configuration.

As shown in FIGS. 22A-22G, the exercise device can be configured withvarious accessories to allow a user to perform various types ofexercises. The exercise device 858 includes a bench frame 882 supportingthe adjustable bench assembly 860 having an adjustable back support 882and bench seat 884. The bench frame 882 includes a seat rail 888 with afirst end portion 890 pivotally connected with the main frame 862 and asecond end portion 892 supported by the forward bench support 880. Themain frame 862 also supports right and left adjustable arm assemblies894, 896 and cable-pulley assemblies 898, 900 that provide a userinterface with the right and left resistance systems 870, 872. Theadjustable arm assemblies 894, 896 are pivotally connected with theframe 862 to provide the user with the ability to adjust the position ofthe arm assemblies along vertically oriented arcs. The resistancesystems 870, 872 are also connected with and are supported by the mainframe 862. Each resistance system includes a transmission assembly 902and resistance assembly 904. The transmission assembly 902 includes thepreviously mentioned tensioning mechanism 878, but does not include acam selector and a plurality of selectable cams as described above withreference to earlier embodiments. However, it is to be appreciated thatthe selectable cams described above may be utilized with the exercisedevice of FIGS. 22A-22G. The resistance assemblies 870, 872 utilizeresistance packs 874 similar to those used with earlier embodiments;however, the resistance systems do not include a selector mechanism toallow a user to select the amount of resistance. Instead, the userstacks a desired number of resistance packs 874 onto a resistance axle906 to select the amount of resistance. As described below, theresistance packs have interconnecting housings. It should beappreciated, however, that the selector mechanism of earlier embodimentsmay be employed in the exercise device 858 of FIGS. 22A-22G.

Similar to earlier embodiments, the forward bench support 880 of theexercise device 858 is pivotally connected with the seat rail 888. Inaddition, the first end portion 890 of the seat rail 892 is pivotallyconnected with the frame 862, which allows a user to place the exercisedevice 858 in a storage configuration, as shown in FIG. 22G, wherein thesecond end portion 892 of the seat rail 888 is rotated upward toward theframe until the seat rail is substantially vertical with respect to thesupport surface. Further, the back support 884 and the bench seat 886are adjustably coupled with the bench frame 882. More particularly, thebench seat 886 is rollingly connected with the seat rail 888 such thatthe bench seat can roll back and forth along the length of the seatrail. As shown in FIGS. 22A-22G, the bench seat can also be selectivelylocked into various positions along the length of the seat rail as wellas being configured to roll freely back and forth along the seat rail.As shown in FIGS. 22A, 22C, and 22D, the back support 884 is not fixedlyconnected with the exercise device 858, and as such, is removable. Whenthe bench seat 886 is positioned on the seat rail 888 in a rearwarddirection relatively close to the frame 862, the back support 884 can beplaced in an inclined position supported between the bench seat 886 theframe 862, as shown in FIG. 22D.

As previously mentioned, the main frame 862 supports the resistancesystem 868, the adjustable arm assemblies 864, the cable-pulley assembly866, and the first end portion 890 of the seat rail 888. As shown inFIGS. 23A-23B, and others, the main frame 862 includes an uprightstructure 908 connected with a base structure 910, which includes aplatform plate 912 supported on a base frame 914. The base frame 914includes right and left base members 916, 918 connected with andseparated by a front cross member 920 and first and second rear crossmembers 922, 924 to define a substantially square shape. The platformplate 912 is connected with and is supported on upper surfaces of themembers defining the base frame 914. Right and left plate supportmembers 926, 928 extending between the front cross member 920 and thefirst and second rear cross members 922, 924 provide additional supportto the platform plate.

As shown in FIGS. 23A and 23B, right and left wheels 930, 932 arerotatably connected with the front cross member 920 that allow a user tomaneuver the exercise device along a support surface from one locationto another. Although the exercise device includes wheels, it is to beappreciated that the exercise device can also include rollers, skidplates, or other components to assist with maneuvering the exercisedevice. When the main frame 862 is supported by the base frame, thewheels are positioned adjacent to and slightly above the supportsurface. To move the exercise device from one location to another, auser can place the exercise device 858 in the storage configurationshown in FIG. 22G. Once in the storage configuration, the user can pivotthe main frame 862 forward to bring the wheels 930, 932 into engagementwith the support surface. The user can then roll the exercise devicealong the support surface to a desired location.

As shown in FIGS. 23A and 23B, the base frame 914 also includes agenerally L-shaped center support member 934 having a base portion 936and an upright portion 938. More particularly, the base portion 936 ofthe center support member 934 extends rearwardly from the front crossmember 920, between the first and second rear cross members 924, 926,and from under the base plate to the upwardly extending upright portion938. A rear base member 940 which adds lateral support to the frame 862is connected with the center support member 934 through rear supportbrackets 942 connected with the base portion and the upright portion ofthe center support member.

Referring to FIGS. 23A, 23B, and others, the upright structure 908includes an arm support member 944 extending upward from the top surfaceof the base portion 936 of the center support member 934. A pair offorward side support brackets 946 and a center support bracket 948 areconnected with the arm support member 944 and the center support member934. A transmission support member 950 extends rearward from the armsupport member 944 and connects with the upright portion 938 of thecenter support member 948. A resistance support member 952 extendsrearward from the arm support member 944 above the transmission supportmember 950 and connects with the upright portion 938 of the centersupport member 934. As shown in FIG. 23C, a lower foot plate 954assembly is connected with and extends forward from a lower portion onthe arm support member 944. The lower foot plate assembly 954 includes ahousing 956 extending forward from the arm support member 944 and isdefined by right and left side plates 958, 960 separated by a top sideplate 962. The right and left side plates are connected with right andleft sides of the arm support member. Right and left foot plates 964,966 extend outward from the right side plate and the left side plate.The foot plates provide platforms upon which a user can place his feetwhen performing various exercises, such as leg press exercises.

As shown in FIGS. 22B, 22G, 23C, and others, the seat rail 888 ispivotally connected with and extends forward from the lower foot plateassembly 954. More particularly, the first end portion 890 of the seatrail 888 is pivotally connected with a first seat rail axle 968supported between the right and left side plates 958, 960 of the lowerfoot plate assembly 954. The bench frame 882 also includes a bottom rail970 pivotally connected with the lower foot plate assembly 954 through afirst bottom rail axle 972. More particularly, the first bottom railaxle 972 is supported between the right and left side plates 958, 960 ofthe lower foot plate assembly below and forward of the first seat railaxle 968. The bottom rail 970 is a generally elongate member with firstand second end portions 974, 976, the first end portion being angledupwardly from a mid portion 978. The first end portion 974 of the bottomrail 970 is pivotally connected with the first bottom rail axle 972. Thebottom rail 970 is located under the seat rail 888 and extends forwardfrom the first bottom rail axle in a direction generally parallel withthe seat rail 888 to the second end portion 976 of the bottom rail 970.As discussed in more detail below, when the exercise device is placed inthe storage configuration, the bottom rail acts to pull the forwardbench support 880 inward toward the bottom rail 970 and the seat rail888.

As shown in FIGS. 22B, 22G, 24A, and others, the forward bench support880 is pivotally connected with and adjustably supports the second endportions of the seat rail 888 and the bottom rail 970 above the supportsurface. The forward bench support 880 includes a cross member 980having a pair of end caps 982 at opposing end portions thereof adaptedto engage the support surface. Right and left support members 984, 986extend upward from opposing end portions of a support bracket 988connected with the cross member 980. A handle 990 connected with andextending along a front side of the cross member 980 can be used to liftthe second end portions of the bottom rail 970 and seat rail 888 whenplacing the exercise device 858 in the storage configuration. Theforward bench support 880 can also include a collar support bracket 992connected between the right and left support members 984, 986. It is tobe appreciated that the forward bench support can include additionalcomponents for added rigidity, stability, and/or strength. For example,the forward bench support 880 includes a U-shaped gusset 994 connectedwith the support members and support bracket. The collar support bracket992 can be connected with an accessory support member or collar 996adapted to receive a support post 998 connected with an exerciseaccessory 1000, such as a preacher curl accessory 1000 shown in FIGS.22E and 22F. The accessory support collar 996 can also include anaccessory pop-pin 1004 adapted to engage apertures on the exerciseaccessory support post for selective height adjustment of the exerciseaccessory. Also, a leg developer assembly 1006 can be pivotallysupported between the right and left support members 984, 986.

As shown in FIGS. 22G and 24A-24C, the second end portion 892 of theseat rail 888 is connected with the second end portion 976 of the bottomrail 970 through the right and left support members 984, 986 of theforward bench support 880. More particularly, the second end portion 892of the seat rail 888 is pivotally connected with the forward benchsupport through a second seat rail axle 1008, and the second end portionof the bottom rail is pivotally connected with the forward bench supportthrough a second bottom rail axle 1010. As shown in FIGS. 22G and24A-24C, and others, upper regions 1012 of the support members 984, 986adjacent to right and left sides of the second end portion 892 of seatrail 888 are pivotally connected with opposing end portions of thesecond seat axle 1008. Mid regions 1014 of the support members adjacentto right and left sides of the second end portion 976 of the bottom rail970 are pivotally connected with opposing end portions of the secondbottom rail axle 1010.

As previously mentioned, the bottom rail 970 acts on the support members984, 986 to fold the forward bench support 880 inward and upward towardthe bottom rail 970 when the bench frame 882 is moved from the downwardoperative position to the upright storage position. FIG. 22B shows theexercise device 858 with the bench frame 882 in the downward position,and FIG. 22G shows the exercise device with the bench frame in theupright position. The bench frame 882 is placed in the upright positionby pivoting the seat rail 888 and bottom rail 970 upward in a clockwisedirection (as viewed from the right side of the exercise device) aroundthe first seat rail axle and the first bottom rail axle, respectively.As the seat rail and bottom rail pivot clockwise, the second endportions of the seat rail 888 and the bottom rail 970 move along arcsthat are not parallel. More particularly, because the first seat railaxle 968 is located above and rearward of the first bottom rail axle972, the second end portion 976 of the bottom rail 970 and the secondbottom rail axle 1010 move rearward and upward relative to the secondend portion 892 of the seat rail 888 and the second seat rail axle 1008.The movement of the second end portion 976 of the bottom rail 970 withrespect to the second end portion 892 of the seat rail 888 causes thesecond bottom rail axle to pull on the mid regions 1014 of the supportmembers 984, 986, which in turn, causes the support members to pivotcounterclockwise (as viewed from the right side of the exercise device)around the second seat rail axle 1008. As the support members pivotcounterclockwise around the second seat rail axle, lower regions 1016 ofthe support members 984, 986 and the cross member 980 pivot toward thebottom rail 970.

Conversely, when moving the bench frame 882 from the upright position(FIG. 22G) to the downward position (FIG. 22B), the bottom rail 970 actson the support members 984, 986 to extend the forward bench support 880outward and downward away from the bottom rail 970. The bench frame 882is placed in the downward position by pivoting the seat rail 888 andbottom rail 970 counterclockwise (as viewed from the right side of theexercise device) around the first seat rail axle 968 and the firstbottom rail axle 972, respectively. As the seat rail 888 and bottom rail970 pivot counterclockwise, the second end portions of the seat rail andthe bottom rail move along arcs that are not parallel. Moreparticularly, the second end portion 976 of the bottom rail 970 and thesecond bottom rail axle 1010 move forward and downward relative to thesecond end portion 892 seat rail 888 and the second seat rail axle 1008.The movement of the second end portion 976 of the bottom rail 970 withrespect to the second end portion 892 of the seat rail 888 causes thesecond bottom rail axle 1010 to push on the mid regions 1014 of thesupport members 984, 986, which in turn, causes the support members topivot clockwise (as viewed from the right side of the exercise device)around the second seat rail axle 1008. As the support members 984, 986pivot clockwise around the second seat rail axle 1008, the lower regions1016 of the support members 984, 986 and the cross member 980 pivot awayfrom the bottom rail 970.

The exercise device 858 can also include a pop-pin 1018 or similardevice to selectively lock the bench frame 882 in the downward andupright positions. As shown in FIGS. 24A-24C, the pop-pin 1018 isconnected with the left support member 986 of the forward bench support880. The pop-pin 1018 is adapted to selectively connect the forwardbench support 880 with the bench frame 882. More particularly, as shownin FIGS. 24B and 24C, right and left extension plates 1020, 1022rotatably supporting two pulleys 1024 are connected with the second endportion 976 of the bottom rail 970. As discussed in more detail below,the two pulleys 1024 are adapted to interact with the cable-pulleyassembly. The pop-pin 1018 is spring loaded and adapted to selectivelyengage apertures in the left extension plate 1022 to selectively lockthe bench frame 882 in the downward and/or upright positions. As shownin FIG. 24B, the pop-pin can include a body housing a spring operablyconnected with a pin. The spring acts to force the pin through the leftsupport member 986 and against the left extension plate 1022. The pincan be disengaged from the left extension plate 1022 by pulling on ahandle 1032 connected with the pin in a direction away from the leftextension plate. The pop-pin 1018 is adapted to engage a first aperture1034 and a second aperture 1036 in the left extension plate. Asdiscussed in more detail below, when the pop-pin 1018 engages the firstaperture 1034, the bench frame 882 is selectively locked into thedownward position. Alternatively, when the pop-pin 1018 is engages thesecond aperture 1036, the bench frame 882 is selectively locked into theupright position. It is to be appreciated that the pop-pin 1018 can belocated on other locations on the exercise device, such as on the rightsupport member 984. It is also to be appreciated that the bench framecan be configured to be selectively locked in only the upright ordownward positions and need not be configured to be selectively lockedin both the downward and upright positions.

FIG. 22B shows the bench frame 882 locked in the downward position withthe pin 1030 of the pop-pin 1018 engaged with the first aperture 1034 inthe left extension plate 1022. When the pop-pin 1030 is engaged with thefirst aperture 1034, the left support member 986 of the forward benchsupport 880 is connected with the bottom rail 970 through the leftextension plate 1022 as well as the second bottom rail axle 1010. Assuch, the left support member 986 is selectively locked into a fixedposition relative to the bottom rail 970, which in turn, prevents theforward bench support 880 from pivoting about the second seat rail axle1008. As described above, relative movement between the second seat railaxle and second bottom rail axle when placing the bench frame in theupright position causes the support members 984, 986 of the forwardbench support 880 to pivot clockwise (as viewed from the right side ofthe exercise device) around the second seat rail axle 1008. However,when the pop-pin 1018 is engaged with the first aperture 1034, theforward bench support is prevented from pivoting around the first pivotaxle, locking the bench frame in the downward position.

To place the bench frame 880 in the storage position, as shown in FIG.22G, the pop-pin 1018 is first disengaged from the first aperture 1034of the left extension plate 1022 by pulling the handle 1032 away fromthe left extension plate. The second end portions of the seat rail 888and bottom rail 970 are then lifted and pivoted clockwise (as viewedfrom the right side of the exercise device) around the first seat railaxle 968 and the first bottom rail axle 972. As described above, themovement of the second end portion 976 of the bottom rail 970 withrespect to the second end portion 892 of the seat rail 888 causes theforward bench support to pivot counterclockwise (as viewed from theright side of the exercise device) around the second seat rail axle1008. As the forward bench support pivots counterclockwise around thesecond seat rail axle, the lower regions 1016 of the support members984, 986 and the cross member 980 move toward the bottom rail 970. Inaddition, the pop-pin 1018 connected with the left support member 986moves toward the bottom rail 970 until the pop-pin 1018 is aligned withand engaged with the second aperture 1036 in the left extension plate1022, locking the bench frame in the upright position.

FIG. 22G shows the bench frame 882 locked in the upright position withthe pop-pin 1018 engaged with the second aperture 1036 in the leftextension plate 1022. When the pop-pin is engaged with the secondaperture in the left extension plate, the left support member 986 of theforward bench support 880 is connected with the bottom rail 970 throughthe left extension plate 1022 as well as the second bottom rail axle1010. As such, the left support member 986 is selectively locked into afixed position relative to the bottom rail 970, which in turn, preventsthe forward bench support 880 from pivoting about the second seat railaxle 1008. As described above, relative movement between the second seatrail axle and the second bottom rail axle when placing the bench framein the downward position causes the forward bench support to pivotclockwise (as viewed from the right side of the exercise device) aroundthe second seat rail axle. However, when the pop-pin 1018 is engagedwith the second aperture 1036, the forward bench support 880 isprevented from pivoting around the second seat rail axle. Therefore, thebench frame is locked in the upright position when the pop-pin isreceived within the second aperture.

From the storage position of FIG. 22G, when placing the bench frame 880in the operative position shown in FIG. 22B, the pop-pin 1018 isdisengaged from the second aperture 1036 of the left extension plate1022. The second end portions of the seat rail 888 and bottom rail 970are then moved downward and are pivoted counterclockwise (as viewed fromthe right side of the exercise device) around the first seat rail axle968 and the first bottom rail axle 972. As described above, the movementof the second end portion 976 of the bottom rail 970 with respect to thesecond end portion 892 of the seat rail 888 causes the second bottomrail axle 976 to push on the mid regions 1014 of the support members984, 986, which in turn, causes the forward bench support 880 to pivotclockwise (as viewed from the right side of the exercise device) aroundthe second seat rail axle 1008. As the support members pivot clockwisearound the second seat rail axle, the lower regions 1016 of the supportmembers 984, 986 and the cross member 980 move away from the bottom rail970. In addition, the pop-pin 1018 connected with the left supportmember 986 moves away from the bottom rail until the pop-pin is alignedwith and engaged with the first aperture 1034 in the left extensionplate 1022, locking the bench frame in the downward position.

An alternative embodiment of a forward bench support 880′ is shown inFIGS. 25A-25C. As with the forward bench support 880 described above,the forward bench support 880′ automatically folds inward toward theseat rail 970 and bottom rail 888 when placing the bench frame 882 inthe storage configuration. However, the forward bench support 880′ shownin FIGS. 25A-25C also provides for selective adjustment of the seat railincline. The forward bench support is pivotally connected with andadjustably supports the second end portion 892 of the seat rail 888above the support surface. The forward bench support 880′ includes across member 980′ having a pair of end caps 982′ at opposing endportions thereof adapted to engage the support surface. Right and leftsupport members 984′, 986′ extending upward from the cross member 980′include apertures adapted to receive opposing end portions of a secondseat rail axle 1008′. The second seat rail axle 1008′, in turn, issupported by an axle support member 1038 extending downward from thesecond end portion 892 of the seat rail 888.

As shown in FIGS. 25A-25C, the second end portion 892 of the seat rail888 is connected with the second end portion 976 of the bottom rail 970through right and left pivot plates 1040, 1042. The pivot plates aregenerally triangularly-shaped, defining a first corner region 1044, asecond corner region 1046, and a third corner region 1048. The firstcorner regions 1044 of the pivot plates 1040, 1042 are pivotallyconnected with opposing end portions of a first corner pivot axle 1045.The second corner regions 1046 of the pivot plates are adjacent to rightand left extension plates 1020′, 1022′ connected with the second endportion 976 of the bottom rail 970 and are pivotally connected withopposing end portions of a second bottom rail axle 1010′. As discussedin more detail below, a leg developer assembly can also be pivotallyconnected with the third corner regions of the pivot plates through athird pivot axle.

As previously mentioned, the right and left extension plates 1020′,1022′ connect the second end portion 976 of the bottom rail 970 with theforward bench support 880′, and more particularly, with the right andleft support members 984′, 986′, respectively. As shown in FIGS. 25B and25C the right and left extension plates 1020′, 1022′ are substantiallymirror images of each other, each plate defining a forward side region1050, a rear side region 1052, a top side region 1054, and a bottom sideregion 1056. Each plate includes a slot 1058 adapted to receive a pin1060 extending outward from each support member 984′, 986′. The slot1058 includes an arcuate upper portion 1062 and an arcuate lower portion1064. The lower portion 1064 of the slot 1058 generally extends from therear side region 1052 of the extension plate to the forward side region1050. From a forward end of the lower portion of the slot, the upperportion 1062 of the slot 1058 extends upward toward the top side region1054 of the extension plate and curves toward the forward side region1050. A pop-pin 1018′ supported on the left extension plate 1022′ isadapted to engage a first aperture 1066 and a second aperture 1068 onthe left support member 986′ of the forward bench support 880′. Asdiscussed in greater detail below, when the forward bench support ispivoted, either for different use configurations or for the storageposition, the pop-pin is disengaged and when the bench is pivoted, thepins 1060 move along the slots 1058.

The forward bench support 880′ of FIGS. 25A-25C can be pivoted aroundthe second seat rail axle 1008′ to adjust the height and level of theseat rail 888. In a configuration where the seat rail 888 inclines fromthe first end portion 890 to the second end portion 892, the pop-pin1018′ on the left extension plate 1022′ is engaged with the firstaperture 1066 in the left support member 986′. In addition, the pins1060 extending from the right and left support members 984′, 986′ aregenerally located where the upper and lower portions 1062, 1064 of theslots 1058 intersect. To lower the elevation of the second end portion892 of the seat rail 888, the pop-pin 1018′ is disengaged from the firstaperture 1066, and the forward bench support 880′ is pivoted rearwardlyaround the second seat rail axle 1008′ until the pop-pin 1018′ engagesthe second aperture 1068. As the forward bench support pivotsrearwardly, the pins 1060 extending from the right and left supportmembers 984′, 986′ move rearward along the lower portions 1064 of theslots 1058 in the extension plates 1020′, 1022′.

As previously mentioned, the bench frame 882 having the forward benchsupport 880′ of FIGS. 25A-25C can also be placed in a storageconfiguration with the seat rail 888 rotated upward toward the frame 862until the seat rail is substantially vertical with respect to thesupport surface. The seat rail 888 can also be selectively locked in thestorage position. To place the bench frame 882 in the storageconfiguration, the pop-pin 1018′ on the left extension plate 1022′ isdisengaged from either the first aperture 1066 or second aperture 1068.If the forward bench support 880′ is in a rearward pivotal position, theforward bench support is first pivoted around the second seat rail axle1008′ to place the pins 1060 extending from the right and left supportmembers 984′, 986′ near the intersection of the upper and lower portions1062, 1064 of the respective slots 1058. The second end portion 892 ofthe seat rail 888 is then lifted upward so the seat rail and bottom rail970 pivot clockwise (as viewed from the right side of the exercisedevice) around the first seat rail axle 968 and the first bottom railaxle 972, respectively. Handles 1070 connected with the right and leftpivot plates 1040, 1042 can be used to lift the second end portion ofthe seat rail.

As the second end portion 892 of the seat rail 888 pivots upward, thebottom rail 970 acts on the pivot plates 1040, 1042 to fold the forwardbench support 880′ inward and upward toward the bottom rail 970. Asdiscussed above, the second end portions of the seat rail 888 and thebottom rail 970 move along arcs that are not parallel as the bottom railand seat rail pivot clockwise around the first seat rail axle and thefirst bottom rail axle. As such, the second end portion 976 of thebottom rail 970 moves rearward and downward relative to the second endportion 892 of the seat rail 888. The relative movement of the secondend portions of the bottom rail and seat rail causes the second bottomrail axle 1010′ to pull on the second corner regions 1046 of the pivotplates 1040, 1042, which in turn, causes the pivot plates to pivotcounterclockwise (as viewed from the right side of the exercise device)around the first corner pivot axle 1045. Rotation of the pivot platescounterclockwise around the first corner pivot axle also moves the thirdcorner regions 1048 of the pivot plates into general alignment with theseat rail. Further, as the pivot plates pivot counterclockwise aroundthe second seat rail axle, the pins 1060 extending from the right andleft support members 984′, 986′ move upward and forward along the upperportions 1062 of the slots in the extension plates 1020′, 1022′, whichguides the forward bench support pivotal motion counterclockwise (asviewed from the right side of the exercise device) around the firstcorner pivot axle 1045 until the pop-pin 1018′ engages the secondaperture 1068, which locks the seat rail 888 into the storageconfiguration.

As previously mentioned, the bench seat 886 of the exercise device 858of FIGS. 22A-22G is adjustably connected with the bench frame 882. Asshown in FIGS. 26A-26B and others, the bench seat is connected with theseat rail 888 through a wheel car assembly 1072 that allows a user rollthe bench seat 886 back and forth along the length of the seat rail 888.The wheel car assembly 1072 of FIGS. 26A-26B is different than the wheelcar assembly described above with reference to the first embodiments ofthe exercise device. The wheel car assembly 1072 includes a main body1074 defined by right and left sides 1076, 1078 connected with andseparated by a top side 1080. The top side 1080 supports a paddedportion 1082 of the bench seat 886. A bench seat pop-pin 1084 issupported on the left side 1078 of the wheel car assembly 1072 and isadapted to engage apertures 1086 on a left side 1088 of the seat rail888. As described in more detail below, a user can selectively fix thebench seat in a desired location along the length of the seat rail andcan also configure the bench seat pop-pin, so the bench seat can freelyroll back and forth along the length of the seat rail.

As shown in FIGS. 26A and 26B, the wheel car assembly 1072 includes aforward upper axle 1090 and a rear upper axle 1092 are connected withand extend through the right and left sides 1076, 1078 adjacent the topside 1080 of the main body 1074. The upper axles 1090, 1092 each supportleft and right rollers 1094, 1096 adapted to roll along a top side 1098of the seat rail 888. Each roller includes a cylindrical portion 1100and a ledged portion 1102. The cylindrical portion 1100 defines aconstant radius flat rolling surface adapted to engage the top side 1098of the seat rail 888. The ledged portion 1102 defines an increasingradius rolling surface adapted to engage upper right and left cornerregions 1104, 1106 of the seat rail 888. The ledged portions 1102 of therollers act as thrust bearings to absorb forces exerted on the benchseat 886 that have a sideway component perpendicular to the length seatrail 888. As such, the ledged portions of the rollers help to keep thewheel car assembly aligned with the seat rail as it rolls back and forthalong the length of the seat rail.

As shown in FIGS. 26A and 26B, the wheel car assembly 1072 also includesa forward lower axle 1108 and rear lower axle 1110 connected with andextending through the right and left sides 1076, 1078 of the main body1074 below the upper axles 1090, 1092. The lower axles each support leftand right rollers 1094′, 1096′ adapted to roll along a bottom side 1112of the seat rail 888. Similar to the rollers connected with the upperaxles, each roller supported by the lower axles include cylindricalportions 1100′ and ledged portions 1102′. The cylindrical portiondefines a flat rolling surface adapted to engage the bottom side 1112 ofthe seat rail 888, and the ledged portion defines an increasing radius(inside to outer edge) rolling surface adapted to engage lower right andleft corner regions 1114, 1116 of the seat rail 888. The combination ofthe rollers engaging the top and bottom sides of the seat rail actprevent the bench seat 886 from tipping forward or backward or otherwisedisengaging from the seat rail 888.

As previously mentioned, the bench seat 886 can be configured to eitherroll freely along the length of the seat rail 888, or can be selectivelylocked into various positions along the length of the seat rail. Moreparticularly, the bench seat pop-pin 1084 on the left side 1072 of thewheel car assembly 1072 is adapted to selectively engage apertures 1086in the left side 1088 the seat rail 888 to selectively lock the benchseat 886 into a desired positioned along the length of the seat rail.For example, the bench seat pop-pin can be disengaged from an apertureon the seat rail, which allows the bench seat to roll backward orforward to a desired position along the length of the seat rail. Oncethe bench seat is rolled to a desired location along the seat rail, thebench seat pop-pin be engaged with another aperture in the seat rail tolock the bench seat into the desired position.

As shown in FIGS. 26A and 26B, the bench seat pop-pin 1084 isspring-loaded and includes a body 118 housing a spring operablyconnected with a pin. The spring acts to force the pin to engage thepop-pin 1084 with the left side 1088 of the seat rail 888. The pop-pin1084 can be disengaged from the seat rail 888 by pulling on a handle1124 connected with the pin in a direction away from the left side 1088of the seat rail 888. When moving the bench seat 886 from a firstlocation to a second along the seat rail, a user can pull the handle1124 to disengage the pop-pin 1084 from the seat rail 888. While holdingthe pop-pin in disengagement from the seat rail, the bench seat 886 canbe rolled to the second location. Once the bench seat is in the secondlocation, the handle 1124 can be released, which allows the spring toforce the pop-pin 1084 back into engagement with the seat rail 888. Ifthe pop-pin 1084 is aligned with one of the apertures 1086 in the leftside 1088 of the seat rail 888, the pin will extend into one of theapertures, locking the bench seat 886 into the second position. If thepop-pin 1084 is not aligned with one of the apertures 1086, the pin willbe forced against the left side 1088 of the seat rail 888. The benchseat 886 can then be rolled backward and forward until the pop-pin isaligned with and engages one of the apertures.

As previously mentioned, the bench seat 886 can also be configured toroll freely along the seat rail 888. More particularly, the bench seatpop-pin 1084 can be selectively configured to disable the spring-loadedfeature so the pop-pin does not engage the left side 1088 of the seatrail 888. As shown in FIGS. 26A and 26B, the body 1118 of the bench seatpop-pin 1084 includes a first pair of channels 1126 and a second pair ofchannels 1128 extending inward from a distal end portion of the body1118. The channels 1126, 1128 are adapted to receive opposing endportions of a shaft 1130 extending through the pop-pin. As such, thechannels act to limit the distance that the pin 1122 can extend from thebody 1118 toward the seat rail 888. A user can align the shaft 1130 witheither pair of channels by pulling the handle 1124 outward from the body1118 and turning the handle to align the shaft with the desired pair ofchannels. As shown in FIGS. 26A and 26B, when the shaft 1130 is alignedto be received within the first pair of channels 1126, the pin canextend far enough toward the seat rail 888 to engage one of theapertures, which prevents the bench seat 886 from freely rolling alongthe seat rail 888. The second pair of channels 1128 are shorter than thefirst pair of channels 1126. As such, when the shaft is received withinthe second pair of channels 1128, the pin does not extend far enoughfrom the body to engage the seat rail 888. Therefore, when the shaft isreceived within the second pair of channels 1128, the bench seat 886 canfreely roll back and forth along the seat rail 888 without the springforcing the pop-pin into engagement with the left side 1088 of the seatrail 888 and into one of the apertures 1086.

As previously mentioned, the back support 884 of the bench assembly 860is adjustable and removable. More particularly, the back support 884 isadapted to selectively connect with bench seat 886, seat rail 888, andthe arm support member 944. As shown in FIGS. 27A, 27B, and others, theback support 884 includes forward and rear padded portions 1132, 1134mounted on right and left back support rails 1136, 1138. Forward endportions of the back support rails each define bench seat hooks 1140adapted to receive extended end portions 1142 of the forward upper axle1090 extending outward from the right and left sides 1076, 1078 of thewheel car assembly 1072 (see FIG. 26B). Rear end portions of the backsupport rails 1136, 1138 are connected with opposing end portions of aback support handle 1144. As shown in FIGS. 27A and 27B, the rear paddedportion 1134 of the back support 884 is further supported by a backsupport member 1146. The back support member 1146 defines a U-shapedchannel 1148 adapted to fit over the seat rail 888.

Referring to FIGS. 22C, 27A, and 27B, the bench seat 886 and the backsupport 884 can be connected together on top of the seat rail 888 toform a flat bench 1150. To form the flat bench, the bench seat 886 islocked in position near the second end portion 892 of the seat rail 888and the bench seat hooks 1140 on the back support are connected with theextended portions 1142 of the forward upper axle 1090 on the bench seat886. The U-shaped channel 1148 in the back support member 1146 ispositioned over the seat rail 888. Because the U-shaped channel engagesopposing sides of the seat rail 888, the back support member 1146 addslateral stability to the back support which helps prevent the backsupport from tipping side-to-side on the seat rail. As shown in FIGS.22D, 23A, and 23B, the back support 884 can also be connected betweenthe bench seat 886 and hook brackets 1152 on the arm support member 944such that the back support is inclined relative to the bench seat. Thehook brackets 1152 are connected with and extend forward from the frontside of the arm support member. Upper portions of the hook brackets arerecessed to defined arcuate channels 1154 adapted to receive and supportthe back support handle 1144. In the inclined position, the bench seat886 is locked in a position between the second end portion 890 and firstend portion 892 of the seat rail 888. The bench seat hooks 1140 on theback support 884 are connected with the extended portions 1142 of theforward upper axle 1090 on the bench seat 886, and the back supporthandle 1144 is supported by the hook brackets 1152 connected with thearm support member 944.

As shown in FIGS. 22E, 28A-28C, and others, the exercise device 858 canalso include a removable foot plate assembly 1156 adapted to connectwith the arm support member 944. The removable foot plate assembly maybe used to perform various exercises, such as squat exercises. Theremovable foot plate assembly 1156 includes a foot plate 1158 connectedwith a frame 1160 having right and left sides 1162, 1164 connected withand separated by a center member 1166. The center member 1166 isgenerally U-shaped with first and second sides 1168, 1170 connected withand separated by a base side 1172. The right and left sides 1162, 1164of the frame 1160 are defined by a first portion 1174 angularly offsetfrom a second portion 1176. The first portions 1174 of the right andleft sides 1162, 1164 are connected with the first and second sides1168, 1170 of the center member 1166 such that first portions extendrearward from the base side 1172 of the center member 1166, defining arear U-shaped channel 1178 adapted to receive the arm support member944. The foot plate 1158 is connected with forward extending edges ofthe second portions 1176 of the right and left sides 1162, 1164 as wellas forward extending edges of the first and second sides 1168, 1170 ofthe center member 1166. The foot plate defines a curved shape, and assuch, the forward extending edges of the frame correspondingly curve toconnect with the foot plate. The removable foot plate assembly alsoincludes right and left foot pads 1180, 1182 connected with the footplate.

As shown in FIGS. 28A-28C, the removable foot plate assembly 1156 alsoincludes a handle bar 1184 extending between the right and left sides1162, 1164 of the frame 1160 near a top end portion of the U-shapedchannel 1178. When connected with the exercise device 858, the removablefoot plate assembly 1156 is supported from the handle bar 1184, which isreceived in the arcuate channels 1154 of the hook brackets 1152 on thearm support member 944. The arm support member 944 is also receivedwithin the U-shaped channel 1178 on the rear side of the foot plateassembly 1156. The U-shaped channel engages opposing sides of the armsupport member to provide lateral stability to the foot plate assembly,which helps prevent the foot plate assembly from tipping side-to-side onthe arm support member. As shown in FIGS. 28B and 28C, padding 1186 canbe connected with the U-shaped channel 1178 to help prevent the armsupport member 944 being scratched or otherwise damaged from repeatedremoval and installation of the removable foot plate assembly. To reducethe weight of the foot plate assembly, material sections can be removedout from portions of the frame, forming a webbed structure 1188 in thesecond portions of the right and left sides.

As shown in FIGS. 22E, 29A, and 29B, the alternative exercise device 858can include a removable leg press seat back 1190. The removable legpress seat back 1190 provides a surface against which a user can presswith his back when sitting on the bench seat 886 while performing legpress exercises. As shown in FIGS. 29A and 29B, right and left rails1192, 1194 extend downward from a back side 1196 of the removable legpress seat back. The right and left rails include upper hooks 1198 andlower hooks 1200 adapted to connect with the rear upper axle 1092 andthe rear lower axle 1110, respectively, on the wheel car assembly 1072.Each upper hook 1198 defines an opening 1202 to an arcuate recess 1204on a rear edge 1206 of the connection rail adapted to receive theextended end portions 1208 of the upper rear axle 1092. Each lower hook1200 defines an opening 1210 to an arcuate recess 1212 on a bottom edge1214 of the connection rail adapted to receive the extended end portions1216 of the lower rear axle 1110. As such, when forces are applied tothe seat back 1190 in a forward direction (direction A in FIG. 29A), theseat back is held in position relative to the bench seat 886 through theengagement of the upper hooks 1198 with the rear upper axle 1092 and theengagement of the lower hooks 1200 with the rear lower axle 1110.Because the hooks are located on bottom and rear edges of the right andleft rails 1194, 1196, the seat back is prevented from pivoting aboutthe upper rear axle 1092 in the clockwise direction (as viewed from theright side of the exercise device). As shown in FIGS. 29A and 29B, todisconnect the seat back 1190 from the bench seat 886, the seat back ispivoted counterclockwise (direction B in FIG. 29A) about the upper rearaxle 1092, which disengages the upper hooks 1198 from the rear upperaxle 1092. Once the upper hooks are disengage from the rear upper axle,the seat back can be lifted upward as shown in FIG. 29B to disengage thelower hooks 1200 from the rear lower axle 1110. It is to be appreciatedthat the removable seat back can also be connected with the forwardaxles 1090, 1108 on the bench seat to place a user in a forward facingdirection, such as shown in FIG. 22F.

As previously mentioned, the removable seat back 1190 can be used whileperforming various exercises. However, the removable seat back isparticularly useful when performing leg press exercises. Referring toFIG. 22E, when performing leg press exercises, a user sits on the benchseat 886 facing toward the arm support member 944 with his back againstthe removable seat back 1190. The user places his feet on the either theremovable foot plate assembly 1156 or the lower foot plate assembly 954.With the bench seat pop-pin 1084 configured to allow the bench seat toroll freely back and forth along the seat rail 888, the user beginspressing against the foot plate with his legs to move the bench seatback and forth along the seat rail against a selected resistance.

As shown in FIGS. 26A-26B and 29A-29B, the bench seat 886 can includeleg press pulleys 1218 rotatably connected with the right and left sides1076, 1078 of the wheel car assembly 1072 that doubles the resistanceexerted on the bench seat 886 from the resistance system. As shown inFIG. 29C, leg press cables 1220 are connected with resistance cables1222 extending from arm assemblies 864. The leg press cables extendaround each leg press pulley 1218 and connect with a cable adjustmentmechanism 1224 connected with the bottom rail 970. As discussed below,the cable adjustment mechanism 1224 can be selectively locked intovarious positions along the length of the bottom rail 970 to adjust theleg press starting position. A portion of resistance cable 1222extending from the arm assembly 864 to the leg press pulley 1218 definesa first cable length 1226, and a portion of resistance cable extendingfrom the leg press pulley 1218 to the cable adjustment mechanism 1224defines a second cable length 1228. In the illustrated configuration,the leg press pulleys 1218 act as floating pulleys coupled with theresistance system 868 through the first and second cable lengths 1226,1228, effectively doubling the force exerted on the bench seat from theresistance system. Although the exercise device is illustrated hereinwith leg press cables, it is to be appreciated that other embodiments ofthe exercise device do not utilize leg press cables. For example, inother embodiments, the resistance cable is extended from the armassembly, around the leg press pulley, and is connected with the cableadjustment mechanism. It should also be appreciated that the exercisedevice need not include the cable adjustment mechanism, and as such, canextend from the leg press pulley to a connection point on the mainframe.

As shown in FIG. 29C, a first end portion 1230 of the leg press cable1220 is releasably connected with the resistance cable 1222 extendingfrom the assembly 864 through a snap hook 1232. It is to be appreciatedthat the leg press cable 1220 can be connected with the resistance cablein various ways and should not be limited to that which is depicted anddescribed herein. From the first end portion 1230, the leg press cable1220 extends to and is wrapped partially around the leg press pulley1218. From the leg press pulley, the leg press cable 1220 extends to asecond end portion 1234 connected with the cable adjustment mechanism1224. As shown in FIG. 29G, the cable adjustment mechanism 1224 includesa main body 1236 having a top side 1238 and a bottom side 1239 connectedwith and separating downwardly extending first and second sides 1240,1242. Cable connection brackets 1244 extend outward from the first andsecond sides of the main body. The cable connection brackets 1244 eachinclude an aperture 1246 to which the second end portion 1234 of the legpress cable 1220 can be releasably connected. It is to be appreciatedthat the second end portion of the leg press cable can be connected withthe apertures in the main body in various ways. For example a hookconnected with the second end portion of the leg press cable can be usedto connect the leg press cable with the main body.

As previously mentioned, the main body 1236 of the cable adjustmentmechanism 1224 is connected with the bottom rail 970 such that the mainbody can move back and forth along the length of the bottom rail 970. Itis to be appreciated that, the main body 1236 can be configured to movealong the bottom rail in various ways, such as by rolling or sliding. Asshown in FIG. 29G, a spring-loaded pop-pin 1248 is supported on the topside 1238 of the main body 1238 of the cable adjustment mechanism 1224.The pop-pin is adapted to selectively engage apertures 1250 along a topside 1252 of the bottom rail 970. As such, cable adjustment mechanism1224 can be selectively fixed in a desired location along the length ofthe bottom rail 970. A handle 1254 pivotally connected with the top side1238 of the main body 1236 is connected with the pop-pin 1248 to allow auser to selective disengage the pop-pin from apertures 1250 in thebottom rail. More particularly, a user can disengage the pop-pin fromthe bottom rail 970 by pressing downward on an extended portion 1256 ofthe handle. With the pop-pin 1248 disengaged from the bottom rail, themain body can move in either direction along the length of the bottomrail.

As previously mentioned, the cable adjustment mechanism 1224 allows userto select a desired starting position when performing leg pressexercises. With reference to the cable configuration shown in FIG. 29C,the closer the cable adjustment mechanism 1224 is positioned toward thefirst end portion 974 of the bottom rail 970, the closer the bench seat886 must be located relative to the foot plate assemblies 954, 1156without causing the resistance cables 1222 to pull on the resistancesystem 868. Conversely, the closer the cable adjustment mechanism ispositioned toward the second end portion 976 of the bottom rail 970, thefarther the bench seat can be moved away from the foot plates withoutcausing the resistance cable to pull on the resistance system.

In one scenario, the cable adjustment mechanism 1224 shown in FIGS. 29Cand 29G is positioned relatively close to the first end portion 974 ofthe bottom rail 970. As such, the first cable length 1226 dictates howfar the bench seat 886 can be moved away from the foot plate assemblies954, 1156 without causing the resistance cables 1222 to pull against andactivate the resistance system 868. If a user desires a bench seatstarting position located farther from the foot plates than what isshown in FIG. 29C, the user can press down on the extended portion 1256of the handle 1254 on the cable adjustment mechanism 1224 to disengagethe pop-pin 1248 from the bottom rail 970. With the pop-pin disengagedfrom the bottom rail, the user can move the main body 1236 of the cableadjustment mechanism 1224 along the bottom rail 970 away from the firstend portion 974. As the main body is moved away from the first endportion of the bottom rail, the second cable length 1228 becomes shorterand the first cable length 1226 grows longer, allowing the bench seat886 to move along the seat rail 888 further away from the foot plateswithout causing the resistance cable to pull against and activate theresistance system. Conversely, moving the cable adjustment mechanismback toward the first end portion 974 of the bottom rail 970 functionsto lengthen the second cable length 1228 and shorten the first cablelength 1226, which requires the bench seat 886 to be located closer tothe foot plates without causing the resistance cables to pull againstand activate the resistance system.

As shown in FIGS. 29E-29G, cable storage housings 1258 can be connectedwith the right and left sides 1076, 1078 of the bench seat 886 outsideof and adjacent to the leg press pulleys 1218. Each cable storagehousing 1258 includes a spool portion 1260 connected with a mountingplate portion 1262. The mounting plate portion 1262 is connected withand extends downward from under the bench seat and supports the spoolportion 1260. The mounting plate 1262 also provides shield to helpprevent unintended contact with the leg press pulleys 1218, such as by auser's hands when performing leg press exercises. When not in use, theleg press cables 1220 can be stored on the spool portions 1260 of thecable storage housings 1258. To store the leg press cable 1220, the userfirst disconnects the first end portion 1230 of the leg press cable 1220from the resistance cable 1222 and the second end portion 1234 of theleg press cable from the cable adjustment mechanism 1224. The user thenpulls on either end of the leg press cable until a cable stop 1264 oneither end engages with the leg press pulley. The excess length of legpress cable extending from the leg press pulley can then be wound aroundthe spool portion of the cable storage housing. The cable storagehousing may also include a slot 1266 to which the free end portion ofthe leg press cable can secured to prevent the leg press cable fromunwinding from the spool portion.

As previously mentioned, the exercise device 858 can also include theleg developer assembly 1006 connected with the bench frame 882 shown inFIGS. 22C and 30A-30F. As described above, the leg developer assemblycan be used for leg extension and leg curl exercises. It is to beappreciated that the leg developer assembly 1006 illustrated may be usedon earlier described embodiments of the exercise device, and the legdeveloper assembly of earlier embodiments may be used with the exercisedevice 858 of FIGS. 22A-22G. Moreover, components may be exchanged todefine entirely different leg developer attachments.

As shown in FIGS. 30A-30D, the leg developer assembly 1006 includesright and left actuation members 1268, 1270 and a resistance arm 1272,all pivotally connected with a leg developer axle 1274 supported betweenthe right and left support members 984, 986 of the forward bench support880. The actuation members 1268, 1270 are selectively connected with theresistance arm 1272 through a leg developer pop-pin 1276. As such, thepivotal position of the actuation members relative to the resistance armcan be selectively adjusted to place the leg developer assembly 1006 ina desired configuration for use. To couple the leg developer assembly1006 to resistance system 868, resistance cables 1222 extending from oneor both of the adjustable arm assemblies are connected with theresistance arm 1272. As such, the resistance cables can extend from thearm assemblies and under the two pulleys 1024 supported by the right andleft extension plates 1020, 1022 to connect with the resistance arm1272. With the resistance cables connected and the leg developerassembly in the desired configuration, the user exercises by applyingforces to reciprocatingly pivot the actuation members 1268, 1270.Because the actuation members are connected with the resistance armthrough the leg developer pop-pin 1276, the actuation member and theresistance arm pivot together.

As previously mentioned, the resistance cables 1222 can be connectedwith the leg developer assembly 1006 through the resistance arm 1272.The resistance arm is also pivotally connected with the leg developeraxle 1274 and is selectively connected with the actuation members 1268,1270 through the leg developer pop-pin 1276. As shown in FIGS. 30-30D,the resistance arm 1272 includes a pivot portion 1278 and an arm portion1280. The pivot portion includes an arcuate edge 1282 and an axleaperture 1284 adapted to receive the leg developer axle 1274 topivotally support the resistance arm 1272. The pivot portion 1278 alsoincludes a plurality of circumferentially spaced apertures 1286extending into the arcuate edge 1282. As discussed in more detail below,the leg developer pop-pin 1276 is adapted to engage the apertures 1286to provide for selective pivotal positioning of the actuation membersrelative to the resistance arm. As shown in FIG. 30A, a loop hook 1288on a rear side 1290 of a lower end portion of the resistance armprovides a connection location for the resistance cables 1272.

As mentioned above, the actuation members 1268, 1270 is pivotallyconnected with the leg developer axle 1274 and are selectively connectedwith the resistance arm 1222 through the leg developer pop-pin 1276. Asshown in FIGS. 30-30D and others, upper end portions of the actuationmembers 1268, 1270 are connected with the leg developer axle 1274. Theactuation members extend downward from the leg developer axle and alongopposing sides of the resistance arm 1272. The leg developer pop-pin1276 is supported between the actuation members. More particularly, theleg developer pop-pin 1276 includes a housing 1292 partially enclosing abody 1294 and a pin 1296 supported by an upper wall member 1298 and alower wall member 1300, both extending between the right and leftactuation members 1268, 1270. The body 1294 of the pop-pin 1276 extendsthrough and is connected with an aperture in the upper wall member 1298.The pin 1296 extends from and is slidingly supported by the body 1294and an aperture in the lower wall member 1300. A washer 1302 adapted toengage the housing 1292 surrounding the upper and lower wall members isconnected with an end portion of the pin 1296. The housing 1292 includesa forward portion 1304 connected with a rear portion 1306 that definechannels 1308 adapted to receive the right and left leg actuationmembers 1268, 1270. As such, the housing can slide up and down along theactuation members. Raised ledges on the inside of the forward and rearportions 1304, 1306 form a collar 1310 adapted to receive the pin 1296at a location between the lower wall member 1300 and the washer 1302. Asshown in FIG. 30C, the leg developer pop-pin also includes a spring 1312operably connected with the pin 1296 to force the pin 1296 against thearcuate edge 1282 of the resistance arm 1272 and into the apertures 1286located therein. As shown in FIG. 30D, to disengage the leg developerpop-pin 1276 from the arcuate edge 1282 of the resistance arm 1272, thehousing 1292 is slid along the actuation members 1268, 1270 in adirection away from the leg developer axle 1274, forcing the collar 1310to push against the washer 1302, which in turn, moves the pin away fromthe apertures in the pivot portion of the resistance arm.

As mentioned above, the pivotal position of the actuation members 1268,1270 relative to the resistance arm 1272 can be adjusted to configurethe leg developer assembly 1006 for various different exercises. Forexample, when pivoting the actuation members from a first pivotalposition to a second pivotal position relative to the resistance armassembly, a user can move the housing 1292 to disengage the pop-pin 1276from the resistance arm 1272, as shown in FIG. 30D. While holding thepop-pin in disengagement from the resistance arm, the actuation members1268, 1270 can be pivoted about the leg developer axle 1274 to thesecond pivotal position. As shown in FIG. 30C, once the actuationmembers are in the second position, the housing 1292 can be released,which allows the spring 1312 to force the pin 1296 back into engagementwith the resistance arm 1272. If the pin 1296 is aligned with one of theapertures 1286 in the arcuate edge 1282 of the resistance arm 1272, thepin will extend into one of the apertures, locking the actuation membersinto the second position. If the pin 1296 is not aligned with one of theapertures 1286, the pin will be forced against the arcuate edge 1282 ofthe resistance arm 1272. The actuation members can then be pivoted upand down until the pin is aligned with and forced into one of theapertures. When the pop-pin 1276 is engaged with the apertures 1286 inthe resistance arm 1272, the leg actuation members and the resistancearm rotate together about the leg developer axle 1274.

As shown in FIGS. 22C and 24A, the exercise device 858 also includesroller pads adapted to support a user's legs when performing legextension and leg curl exercises. In particular, the exercise device 858includes right and left upper roller pad assemblies 1314, 1316 used inconjunction with the leg developer assembly 1006. As discussed in moredetail below, the upper roller pad assemblies 1314, 1316 include upperroller pads 1318 adapted to engage a user's legs when performing legextension and leg curl exercises. The upper roller pads 1318 have asubstantially D-shaped cross section defined by a substantially flatfirst side 1320 connected with an arcuate second side 1322. It is to beappreciated that the roller pads are not limited to having asubstantially flat side and an arcuate side as described and depictedherein and can include other combinations of shapes. For example, theupper roller pads can include two arcuate sides forming an oval or anelliptical cross section. In another scenario, the upper roller pads caninclude a single curved side that forms a circular cross section. Theexercise device 858 also includes a pair of lower roller pads 1324rotatably supported on a lower roller pad support member 1326 extendingoutwardly from opposing sides of the actuation members 1268, 1270 of theleg developer assembly 1006.

FIG. 30E shows the leg developer assembly 1006 configured for legextension exercises with the arcuate second sides 1322 of the upperroller pads 1318 upwardly oriented. To position himself on the exercisedevice 858 to perform a leg extension exercise, a user places the backside of his knees on the second sides 1322 of the upper roller pads andthe front side of his ankles behind the lower roller pads 1324. Toconfigure the leg developer for leg curl exercises, the user candisengage the leg developer pop-pin 1276 on the leg developer assembly1006 to allow the actuation members 1268, 1270 to pivot to an upwardposition, such as shown in FIG. 30F. The upper roller pads 1318 are thenrotated to place the flat first sides 1320 of the upper roller pads 1318in an upward orientation. To position himself on the exercise device toperform a leg curl exercise, a user lies on the bench assembly 860 withthe front side of his legs positioned on first sides 1320 of the upperroller pads 1318 and the rear sides of his ankles positioned under thelower roller pads 1324. As described below, the upper roller padassemblies 1314, 1316 are configured to position the first and secondsides of the upper roller pads relative to the leg developer axle 1274to provide additional comfort to the user when performing exercises.

As shown in FIG. 24A, the upper roller pad assemblies 1314, 1316 arerotatably supported on upper roller pad support members 1328 extendingoutwardly from the forward bench support 880. Although the followingdescription refers mainly figures showing mainly the components of theright upper roller pad assembly, it is to be appreciated that the leftupper roller pad assembly is substantially a mirror image of the rightupper roller pad assembly. As such, the left upper roller pad assemblyincludes the same components as the right upper roller pad assembly, andoperates in relation with the frame and forward bench support as theright upper roller pad assembly. As previously mentioned, the upperroller pad 1318 has a D-shaped cross section defined by the firstsubstantially flat side 1320 and the second arcuate side 1322. The upperroller pad also includes a first end side 1330 and a second end side1332. A pad support member aperture 1334 and a support rod aperture 1336extend through the upper roller pad 1318 from the first end side 1330 tothe second end side 1332. A first pin aperture 1338 extends into theupper roller pad from the first end side 1330, and a second pin aperture1340 extends into upper roller pad from the second end side 1332. Asdiscussed in more detail below, an inner end plate 1342 is connectedadjacent to the first end side of the roller pad, and an outer end plate1344 is connected adjacent the second end side of the roller pad.

As shown in FIGS. 24A, 30E, and 30F, the inner end plate 1342 includes afirst side 1346 and a second side 1348 and defines a D-shaped perimetersimilar to the D-shaped cross section of the upper roller pad 1318. Asdiscussed in more detail below, an aperture 1350 in the inner end plate1342 is adapted to receive the upper roller pad support members 1328connected with the forward bench support 880. A stop pin 1352 extendsthrough the inner end plate 1342 such that a first end portion 1354 ofthe stop pin 1352 extends from the first side 1346 of the inner endplate 1342, and a second end portion 1356 of the stop pin 1352 extendsfrom the second side 1348 of the inner end plate 1342. As discussed inmore detail below, the first end portion 1354 of the stop pin 1352 isadapted to engage the support members 984, 986 on the forward benchsupport 880 to limit the range of pivotal movement of the upper rollerpads 1318 about the upper roller pad support members 1328. The secondend portion 1356 of the stop pin 1352 is adapted to be received withinthe first pin aperture 1338 in the first end side 1330 of the upperroller pad 1318. A hollow support rod 1358 having a first end portion1360 connected with the second side 1348 of the inner end plate 1342extends outward to a second end portion 1362. As discussed below, thesupport rod 1358 is adapted to be received within the support rodaperture 1336 in the upper roller pad 1318 and the second end portion1362 of the support rod is adapted to connect with the outer end plate1344.

As shown in FIG. 24A, the outer end plate 1344 includes a first side1364 and a second side 1366 and defines a D-shaped perimeter similar tothe D-shaped cross section of the upper roller pad 1318. The outer endplate 1344 includes an aperture 1368 having a side wall 1370 extendinginward from the first side 1364. As discussed below, the aperture 1368is adapted to receive the upper roller pad support members 1328. Theouter end plate also includes a first pin 1372 extending from the firstside 1364 that is adapted to be received within the second end portion1362 of the support rod 1358 extending from the second side 1348 of theinner end plate 1342. In addition, a second pin 1374 extends from thefirst side 1364 of the outer end plate 1344 and is adapted to bereceived within the second pin aperture 1340 in the second end side 1332of the upper roller pad 1318.

As previously mentioned, the upper roller pad 1318 is rotatablysupported on the upper roller pad support member 1328 extending from theright support member 984 on the forward bench support 880. Moreparticularly, the upper roller pad support member extends through theaperture 1350 in the inner end plate, the pad support member aperture1334 in the upper roller pad 1318, and the aperture 1368 in the outerend plate 1344. As shown in FIG. 24A, an end cap 1378 is connected withthe end of the upper roller pad support member 1328 to help maintain therelative axial positions of the component parts of the right upperroller pad assembly. The second end portion 1356 of the stop pin 1352 onthe inner end plate 1342 is received within the first pin aperture 1338of the first end side 1330 of the upper roller pad 1318, and second pin1374 on outer end plate 1344 is received within the second pin aperture1340 on the second end side 1332 of the upper roller pad. As previouslymentioned, the support rod 1358 extends from the inner end plate 1342and through the support rod aperture 1336 in the upper roller pad 1318.As such, the first pin 1372 on the outer end plate 1344 is receivedwithin the second end portion 1362 of the hollow support rod 1358.Therefore, the inner end plate, the outer end plate, and the upperroller pad rotate together about the upper roller pad support member.The first end portion 1354 of the stop pin 1352 engages the supportmembers 984, 986 on the forward bench support 880 to limit the range ofpivotal movement of the upper roller pad 1318 about the upper roller padsupport member.

As previously mentioned, the right and left upper roller pad assemblies1314, 1316 can be used in conjunction with the leg developer assembly1006 when performing leg extension and leg curl exercises. As shown inFIG. 30E, when configuring the exercise device 858 to perform legextension exercises, the upper roller pad assemblies 1314, 1316 arerotated about the upper roller pad support members 1328 so the arcuatesecond sides 1322 of the upper roller pads 1318 are upwardly oriented.As previously described, the user positions himself on the exercisedevice with the back side of his knees on the arcuate second sides ofthe upper roller pads and the front side of his ankles behind the lowerroller pads 1324. As shown in particular in FIG. 30E, the distance Dbetween the arcuate second side 1322 of the upper roller pads 1318 andthe leg developer axle 1374 is such that the user's knee joints aresubstantially aligned with the leg developer axle, which providesadditional comfort to the user when performing leg extension exercises.

As shown in FIG. 30F, when configuring the exercise device to performleg curl exercises, the upper roller pad assemblies 1314, 1316 arerotated about the upper roller pad support members 1328 so the flatfirst sides 1320 of the upper roller pads 1318 are upwardly oriented. Aspreviously described, the user lies on the bench assembly 860 with thefront side of his legs positioned on the flat first sides 1320 of theupper roller pads and the rear sides of his ankles positioned under thelower roller pads 1324. As shown in particular in FIG. 30F the distanceD′ between the flat first sides 1320 of the upper roller pads 1318 andthe leg developer axle 1374 is located substantially behind the user'sknee joints, which provides additional comfort to the user whenperforming leg curl exercises.

As described and depicted herein, the various exercise deviceembodiments include right and left arm assemblies adjustably coupledwith the frame. The arm assemblies 894, 896 of the exercise device 858of FIGS. 22A-22G differs in many respects from earlier describedembodiments. As shown in FIGS. 31A-31F, the right and left armassemblies each include an arm member 1380 having a distal end portion1382 and a proximal end portion 1384. A distal pulley housing 1386 isrotatably connected with the distal end portion 1382 of the arm member1380. The distal pulley housing 1386 rotatably supports a first pulley1388. The distal pulley housing can also rotate relative the arm member1380 to help align the resistance cable 1222 extending through the armmember. A second pulley 1390 is rotatably connected with and partiallyenclosed by the proximal end portion 1384 of the arm member 1380. Asdiscussed in more detail below, the proximal end portion 1384 of the armmember 1380 is pivotally connected with the arm support member 944. Inaddition, each arm assembly includes a spring-loaded arm pop-pin 1392that allows a user to selectively position the arm assembly, from asubstantially downward vertical position, through a plurality ofpositions in approximately a 180° arc, and in a substantially upwardvertical position. More particularly, the arm pop-pin 1392 is operableto allow the arm assembly to pivot about a pivot axis 1394 defined bythe pivotal connection of the proximal end portion 1384 of the armmember 1380 with the frame 862.

As previously mentioned, the arm assemblies 894, 896 are pivotallyconnected with the arm support member 944. As shown in FIGS. 31A-31F, afirst plate 1396 and a second plate 1398 are connected with and extendupward from an upper end portion of the arm support member 944. Thefirst and second plates are also connected with and separated by asupport member 1400 extending upward from the upper end portion of thearm support member 944. Journals 1402 extending from the inside of theproximal end portions 1384 of the arm members 1380 are pivotallyconnected with cylindrically-shaped bearing members 1404 on first andsecond plates 1396, 1398. The bearing members 1404 on the first andsecond plates are collinear with and define pivot axes 1406 for each armassembly. The second pulleys 1390 associated with each arm assembly 894,896 are rotatably connected with second pulley axles 1408 supported byand extending between the first and second plates.

As shown in FIGS. 31A-31F, the first plate includes a plurality ofapertures 1410 that are circumferentially spaced along right and leftarcuate edges 1412, 1414 of the first plate 1396. As discussed in moredetail below, the arm pop-pins 1392 supported on the proximal endportions 1384 of the right and left arm assemblies 894, 896 are adaptedto engage the apertures 1410 on the first plate 1396 to selectively lockthe arm assemblies in various pivotal positions. Pop-pin levers 1416 oneach arm assembly 894, 896 are used to disengage the arm pop-pins 1392from apertures 1410 on the first plate 1396 to allow the arm assembliesto pivot. More particularly, each pop-pin lever 1416 is pivotallysupported by a lever axle 1418 on the arm member and includes a handleportion 1420 angularly offset from a base portion 1422. The base portion1422 of the pop-pin lever 1416 is adapted engage a T-bar 1424 connectedwith the arm pop-pin 1392.

The arm pop-pins 1392 are spring-loaded and are biased into engagementwith first plate 1396. As such, the spring-loaded feature of the armpop-pin forces the T-bar 1424 against the base portion 1422 of thepop-pin lever 1416, which in turn holds the base portion against theouter surface of the arm member 1380. Because the base portion 1422 isangularly offset from the handle portion 1420, when the base portion ispressed against the outer surface of the arm member 1380 by the armpop-pin, the handle portion extends away from the outer surface of thearm member. When the handle portion 1420 is moved toward the outersurface of the arm member 1380, the pop-pin lever 1416 pivots around thelever axle 1418 and the base portion 1422 is lifted away from the outersurface of the arm member. As the base portion moves away from the armmember, the base portion pulls the T-bar 1424 in the same direction,causing the arm pop-pin 1392 to disengage the first plate apertures1410. When the handle portion 1420 is released, the spring-loadedfeature of the arm pop-pin 1392 acts to pull the base portion 1422through the T-bar 1424 back toward the outer surface of the arm member1380. Although the arm pop-pins are shown in various figures as locatedon the front sides of the arm assemblies, it is to be appreciated thatthe arm pop-pins can be located in other locations on the armassemblies. For example, the arm pop-pins 1392 are shown in FIG. 25A aslocated on the rear sides of the arm assemblies 894, 896. Because thearm pop-pins are located on the rear sides of the arm assemblies, thefirst plate 1396 is located rearward of the second plate 1398.

When the arm pop-pins 1392 are disengaged from the apertures 1410 on thefirst plate 1396, the arm assemblies 894, 896 are free to pivot aroundthe pivot axes 1406. Depending upon the weight of the arm assemblies, itmay be relatively difficult for a user to lift and pivot the armassemblies upward to a desired position. As shown in FIG. 31C,embodiments of the present invention can include gas springs 1426 withopposing end portions pivotally connected with the arm assemblies 894,896 and the arm support member 944. The gas springs 1426 act to reducethe effects of the weight of the arm assemblies when the arm pop-pins1392 are disengaged from the first plate 1396. More particularly, thegas springs 1426 are adapted to exert forces on the arm assemblies tomitigate the gravitational forces exerted arm assemblies. It is to beappreciated that the gas springs can be configured to provide differentlevels of force on the arm assemblies. For example, the gas springs canbe configured to the exert forces on the arm assemblies that will causethe arm assemblies to pivot relatively slowly in a downward directionwhen the arm pop-pins are disengaged from the first plate. In anotherexample, the gas springs can be configured to the exert forces on thearm assemblies that will cause the arm assemblies to pivot upward whenthe arm pop-pins are disengaged from the first plate. In yet anotherexample, the gas springs are configured to exert forces on the armassemblies that will hold the arm assemblies in position when the armpop-pins are disengaged from the rear plate until such time when theuser applies a small amount of force to the arm assemblies causing themto pivot up or down around the pivot axes.

As previously mentioned, the user actuates the resistance system 868through the cable-pulley system 866. The cable-pulley system 866 on theembodiment of the exercise device 858 shown in FIGS. 32A and 32Bincludes separate right and left cable-pulley systems 898, 900 thatconnect the right and left resistance systems 870, 872 with the rightand left arm assemblies 894, 896. Although the following description mayrefer to figures illustrating mainly the components of the rightcable-pulley system 898, it is to be appreciated that the leftcable-pulley system 900 is substantially a mirror image of the rightcable-pulley system, and as such, includes the same components as theright cable-pulley system, which operate in relation with each other andwith the frame as the right cable-pulley system. FIGS. 32A and 32Billustrate the cable routing from the right and left arm assemblies 894,896 to the right and left resistance systems 870, 872. From a first end1428, the resistance cable 1222 extends through a cable stop 1430engaged with the first pulley 1388 in the distal pulley housing 1386 andthrough the inside of the arm member 1380 to the second pulley 1390. Thecable stop 1380 is connected with the resistance cable 1222 and preventsthe resistance cable from retracting into the arm member. The resistancecable 1222 exits the proximal end portion 1384 of the arm member 1380and wraps around a portion of the second pulley 1390 and extendsdownward through the arm support member 944 to a lower directionalpulley 1432. From the lower direction pulley 1432, the resistance cable1222 extends to a second end connected with the transmission assembly902 of the resistance system 868.

As previously mentioned, the right and left resistance systems 870, 872each include transmission assemblies 902 and resistance assemblies 904.As shown in FIGS. 23A, 23B, 32A, and 32B, the transmission assemblyincludes a transmission pulley 1436 and a belt pulley 1438 rotatablyconnected with a transmission axle 1440. The transmission axle isconnected with the transmission support member 950 on the main frame862. The transmission pulley is connected with the belt pulley, and assuch, rotate together. As previously mentioned, the second end of theresistance cable 1222 is connected with the transmission pulley 1436.The transmission assembly is connected with the resistance assemblythrough a resistance belt 1442. As shown in FIG. 32C, a first end 1444of the resistance belt 1442 is connected with the belt pulley 1438. Asecond end 1446 of the resistance belt 1442 is connected with alinearizing cam 1448 on the resistance assembly 904. As discussed inmore detail below, forces exerted on the resistance cable 1222, such asduring exercise, can cause the transmission pulley 1436 to rotate. Assuch, when the transmission pulley 1436 rotates in a direction thatpulls on the resistance belt 1442, the linearizing cam 1448 impartstorsional forces to the resistance packs 874 on the resistance assembly904.

It is to be appreciated that although the exercise device 858 of FIGS.22A-22G of the present invention is depicted and described herein with abelt pulley, other configurations of the exercise device utilize a camin place of the belt pulley to provide a different force curve, asdescribed above with reference to earlier embodiments. Further,configurations of the exercise device 858 utilize multiple cams and acam selector mechanism as described above with reference to the earlierembodiments.

The transmission assembly 902 can also include the previously mentionedtensioning mechanism 878 that allows a user to adjust the tension of theresistance belt 1442. More particularly, the tensioning mechanism 878allows the user to decouple the belt pulley 1438 from the transmissionpulley 1436 and rotate the belt pulley relative to the transmissionpulley to adjust the tension of the resistance belt between the beltpulley and the linearizing cam 1448. As discussed in more detail belowwith reference to FIGS. 33A-33E, the tension mechanism 878 includes aspring-loaded locking member 1450 to selectively connect and disconnectthe belt pulley 1438 with the transmission pulley 1436. A knob connectedwith the locking member allows a user to move the locking member 1452 ina first direction to disconnect the belt pulley from the transmissionpulley, which allows the belt pulley to rotate independently from thetransmission pulley and adjust the tension in the resistance belt. Oncethe belt tension has been adjusted, a user can move the knob in anopposite second direction to reconnect the belt pulley with thetransmission pulley. The tension mechanism also includes a compressionspring 1454 to hold the locking member in a position to maintain theconnection between the belt pulley and the transmission pulley.

As previously mentioned, the knob 1452 connected with the locking memberis used to move the locking member 1452 to selectively connect anddisconnect the belt pulley 1438 with the transmission pulley 1436. Asshown in FIGS. 33A-33E, the locking member 1450 includes a disc-shapedbase portion 1456 having a first side 1458 and an opposing second side1460. Four posts 1462 are connected with and extend from the first side1458. As discussed in more detail below, the four posts 1462 areslidingly received within the belt pulley and are connected with theknob. A plurality of studs 1464 extend from the second side 1460 of thebase portion of the locking member. As discussed in more detail below,the studs 1464 are adapted to engage a plurality of correspondinglyspaced apertures 1466 in an inner radial portion 1468 of thetransmission pulley 1436. The base portion 1456 of the locking member1450 further includes an axle aperture 1470 adapted to receive thetransmission axle 1440. When the studs 1464 are engaged with theapertures 1470, the belt pulley and the transmission pulley rotatetogether. Alternatively, the studs are withdrawn from the apertures, thebelt pulley and the transmission pulley can rotate independent of eachother. A longitudinally extending wall along the outer circumference ofthe axle aperture 1470 defines a circular ledge portion 1472 on thesecond side 1460 of the locking member 1450. As discussed in more detailbelow, the ledge portion 1472 is adapted to receive a first end 1474 ofthe compression spring 1454, which acts to hold the studs in engagementwith the apertures.

As shown in FIGS. 33A-33E, the belt pulley 1438 has a spool-shaped crosssection defined by raised first end portion 1476 and a second endportion 1478 separated by a recessed middle portion 1480. The middleportion 1480 defines a flat outer surface 1482 along its length uponwhich the resistance belt 1442 is wrapped. A pulley aperture 1484 havinga varying diameter extends through the center of the belt pulley 1438. Afirst diameter of the pulley aperture 1484 defines a first innercylindrical surface 1486 extending inward from a first end surface 1488of the belt pulley 1438. Four raised convex surfaces 1490 extend alongthe length of the first inner cylindrical surface 1486. As discussed inmore detail below, four corresponding arcuate recesses 1492 in the outercircumference of the base portion 1456 of the locking member 1450 areadapted to slidingly receive the four raised convex surfaces 1490. Asecond diameter defines a second inner cylindrical surface 1494 extendsfrom the first inner cylindrical surface 1486. The second diameter issmaller than the first diameter, which defines a first ring surface 1496located at the transition from the first inner cylindrical surface 1486to the second inner cylindrical surface 1494. A longitudinally extendingwall 1498 on the inner diameter of the first ring surface 1496 defines acircular ledge portion 1500 adapted to be received within a second end1502 of the compression spring 1454, discussed in more detail below. Athird diameter defines a third inner cylindrical surface 1504 extendingfrom the second inner cylindrical surface 1494. The third diameter islarger than the second diameter, defining a second ring surface 1506 atthe transition from the second inner cylindrical surface 1494 to thethird inner cylindrical surface 1504. A fourth diameter defines a fourthinner cylindrical surface 1508 extending from the third innercylindrical surface 1504 to a second end surface 1510. The fourthdiameter is larger than the third diameter, defining a third ringsurface 1512 at the transition from the third inner cylindrical surface1504 to the fourth inner cylindrical surface 1508.

As shown in FIGS. 33A-33E, the locking member 1450 is connected with thebelt pulley 1438 by inserting the four posts 1462 extending from thebase portion 1456 through four post apertures 1514 extending from thefirst ring surface 1496 to the third ring surface 1512. The compressionspring 1454 is positioned between the second side 1460 of the baseportion 1456 of the locking member 1450 and first ring surface 1496 onthe belt pulley 1438. As previously mentioned, the first end 1474 of thecompression spring receives the ledge 1472 on the second side 1460 ofthe locking member 1450, and the second end 1502 of the compressionspring receives the ledge 1500 on the first ring surface 1496 in thebelt pulley. The four posts 1462 are inserted into the four postapertures 1514 until the base portion 1456 of the locking member 1450 isreceived within the belt pulley 1438. More particularly, an outercircumferential edge 1516 of the base portion 1456 is adjacent to thefirst inner cylindrical surface 1486 of the belt pulley 1438 with thefour raised convex surfaces 1490 extending through the four arcuaterecesses 1492. The engagement between the raised convex surfaces and thearcuate recesses in combination with the posts and post aperturesconnects the belt pulley with the locking member such that both rotatetogether while at the same time allowing the locking member to slidelongitudinally with respect to the belt pulley. Compression of thecompression spring 1454 between the locking member 1450 and the beltpulley 1438 forces the base portion 1456 of the locking member 1450 awayfrom the belt pulley 1438 and toward the transmission pulley 1436.

As shown in FIGS. 33A-33E, the transmission pulley 1436 and the beltpulley 1438 are rotatably mounted on the transmission axle 1440. A firstbearing 1517 rotatably supports the transmission pulley on thetransmission axle. A bearing second bearing 1518 adapted to be receivedwithin the belt pulley 1438 adjacent the third inner cylindrical surface1504 is connected with an end of the transmission axle through an axlescrew 1520 and washer 1522 threaded into the end of the transmissionaxle. As such, the second bearing 1518 presses against the second ringsurface 1506 of the belt pulley 1438 to maintain the axial positions ofthe belt pulley and the transmission pulley on the transmission axle.The knob 1452 includes four post apertures 1524 adapted to receive endportions of the four posts 1462 extending through the post apertures1514 and the third ring surface 1512 of the belt pulley 1438. Four knobscrews 1526 inserted into the knob post apertures 1524 are screwed intothe end portions of the four posts 1462. Radially extending screw headson the knob screws are adapted to engage internal ledges on the innerwalls of the knob post apertures. A cap 1528 is also connected with theknob 1526 with a cap screw 1530.

As shown in FIG. 33D, to disengage the belt pulley 1438 from thetransmission pulley 1436, the knob 1452 is moved in a direction awayfrom the transmission pulley, which disengages the studs 1464 on thelocking member 1450 from the corresponding apertures 1466 on thetransmission pulley 1436. The tension of the resistance belt 1442 can beadjusted by turning the knob 1452 and belt pulley 1438 in a desireddirection. Once the resistance belt is adjusted, the knob 1452 is pushedtoward the transmission pulley 1436 as shown in FIG. 33E to reengage thestuds 1464 on the locking member 1450 with the apertures 1466 on thetransmission pulley 1436. The compression spring 1454 presses againstthe locking member and the belt pulley to maintain the engagement of thestuds within the corresponding apertures.

As previously mentioned, the resistance belt 1442 connects thetransmission assembly 902 with the resistance assembly 904. As shown inFIG. 32C, the first end 1444 of the resistance belt 1442 is connectedwith the belt pulley 1438. From the belt pulley, the resistance beltextends upward and is partially wrapped onto the linearizing cam 1448 onthe resistance assembly 904. The second end 1446 of the resistance belt1442 is also connected with the linearizing cam. Unlike earlierembodiments of the exercise device, the resistance assembly 904 on theexercise device 858 does not include a selector mechanism connected toselectively connect various numbers of resistance packs with thelinearizing cam. Instead, the level of resistance is adjusted by placinga desired number of resistance packs 874 on the resistance axle 906, asshown in FIG. 22A. As discussed in more detail below with reference toFIGS. 34A-34D, the resistance packs 874 have housings 1532 that can beconnected with each other and with the linearizing cam 1448. As such, toset the level of resistance on the exercise device 858, a desired numberof resistance packs are placed on the resistance axle and areinterconnected with one another and with the linearizing cam. Forcesapplied to the resistance cable 1222, such as during exercise, aretranslated to the resistance belt 1442 through the transmission assembly902. More particularly, the transmission pulley 1436 and the belt pulley1438 rotate to unwind the resistance belt 1442 from the linearizing cam1448, causing the linearizing cam and the housings of the interconnectedresistance packs to rotate.

The resistance packs 874 on the exercise device 858 are similar to theresistance packs described above with reference to earlier embodiments.However, instead of having a pair of resistance elements, the housing1532 of the resistance pack 874 in FIGS. 34A-34D encloses a singleresistance element 1534 that acts as a torsional spring. It is to beappreciated, however, that other embodiments of the resistance packs 874can be configured to house more than one resistance element. In turn,the resistance element 1534 is connected with a center hub 1536, whichis selectively connected with the resistance axle 906. The housing 1532includes disc-shaped first and second sides 1538, 1540 with a circularrim extending 1542 along the circular periphery of each side. As shownin FIG. 34C, a plurality of rigid triangular frames 1544 extend outwardfrom an inner surface 1546 of the first side 1538. Although theresistance pack 874 is illustrated with eight triangular frames, it isto be appreciated that the resistance pack can have more or less thaneight triangular frames.

As described above with reference to other embodiments, the resistanceelement 1534 shown in FIGS. 34C and 34D acts as a torsional spring andmay be constructed of a suitable elastomeric substance exhibitingresiliency and resistance to stretching. The resistance element 1534includes a plurality of spokes 1548 connected with and extendingradially outward from the center hub 1536. The resistance element 1534is installed in the housing 1532 with the spokes extending between theadjacent triangular frames 1544. The resistance element also includes aplurality of peripheral portions 1550 extending between outer ends ofthe spokes 1548. As with previously described resistance packs, thecenter hub 1536 may be constructed of a rigid material which may beglued or otherwise bonded to the elastomeric inner ends of the spokes.The center hub 1536 shown in FIGS. 34A-34D is provided with a generallyhexagonally-shaped inner surface 1546 adapted to receive the resistanceaxle 906 having a correspondingly shaped cross section. Moreparticularly, the inner surface of the hub defines five flat sides 1554and one curved side 1556. The cross section of the resistance axle 906is similarly shaped with five flat sides 1558 and one curved side 1560,as shown in FIG. 35B. The correspondingly shaped sides of the center hub1536 and resistance axle 906 act as a key that allows the resistancepack to be placed on the resistance axle in a particular angularorientation. As such, the center hub 1536 is configured to receive theresistance axle such that the center hub can slide along the length ofthe resistance axle, but does not rotate relative to the resistanceaxle. When the housing 1532 of the resistance pack 874 containing theresistance element 1534 is rotated relative to the center hub 1536, thespokes 1548 and the peripheral portions 1550 of the resistance elementare stretched. As describe above with reference to the otherembodiments, the resilient construction of the resistance elementresists stretching to provide a resistive force that opposes thestretching of the arms and peripheral portions. It is to appreciatedthat the resistive forces increases the more the resistance elements arestretched. In other words, the more the housing of the resistance packis rotated relative to the hub, the greater the resistance force. It isalso to be appreciated that the resistance packs can be configured withresistance elements having different shapes and sizes, which can producedifferent levels of resistance for the same amount of housing rotationrelative to the resistance axle. For example, FIGS. 34E-34G illustratethree resistance elements 1534′, 1534″, and 1534′″ having threedifferent widths, W′, W″, and W′″, respectively. Provided the threeresistance elements of FIGS. 34E-34G are constructed from materialhaving the same elastomeric properties, the resistance elements with theprogressively larger widths provide greater levels of resistance.

As previously mentioned, the resistance packs 874 are configured toselectively connect with each other. More particularly, hooks 1562 on anoutside surface 1564 of the first side 1538 of one resistance pack isadapted to connect with corresponding hooks 1562 on an outside surface1566 of the second side 1540 of another resistance pack. As shown inFIGS. 34A-34B, partial rings 1568 on each side of the resistance packs874 are defined by circumferentially extending raised surfaces 1570located at various radial distances from the center hub 1536. Theintersection of a first end portion 1572 of the each partial ring withthe outer surfaces 1564, 1566 of each side 1538, 1540 defines a slopedportion 1574 of the partial ring. Extending from the sloped portion1574, a middle portion 1576 of the partial ring defines a generally flatraised portion 1578. From the middle portion 1578, the partial ring 1568extends to a second end portion 1580 defining the hooks 1562. Aspreviously mentioned, the hooks 1562 on the first side 1538 of oneresistance pack are adapted to connect with corresponding hooks 1562 onthe second side 1540 of another resistance pack. In a particularembodiment, as shown in FIGS. 34A-34B, the first side and second sidesof the resistance pack each include a first partial ring 1582 having afirst hook 1584 located at a first radial distance from the center hub1536. A pair of second partial rings 1586 and a pair of second hooks1588 are located at a second radial distance from the center hub 1536. Athird partial ring 1590 and a third hook 1592 is located at a thirdradial distance from the center hub 1536. A pair of fourth partial rings1594 and a pair of fourth hooks 1596 are located at a fourth radialdistance from the center hub 1536. It is to be appreciated that theresistance packs are not limited to the interconnection configurationsdepicted and described herein.

As shown in FIGS. 22A, 35A, 35B, and 35C, the resistance axle 906extends outward from right and left sides of the resistance supportmember 952 to support the resistance assemblies 904 of the right andleft resistance systems 870, 872. As shown in FIGS. 35B and 35C, theresistance axle 906 is connected with the resistance support member 952through a clam shell clamp 1640. The clam shell clamp 1640 includes abottom side 1642 connected with the resistance support member 952between right and left linearizing cam bearings 1644. Eight bolts 1646connect a top side 1648 of the clam shell clamp 1640 with the bottomside 1642. When installed on the exercise device, the resistance axle906 extends through linearizing cam bearings 1644 and between the topand bottom sides 1648, 1642 of the clam shell clamp 1640. The eightbolts 1646 are tightened to provide clamping forces between the top andbottom sides on the resistance axle 906. As shown in FIG. 35C, the topand bottom sides 1648, 1642 of the clam shell clamp 1640 arecorrespondingly formed with the cross sectional shape of the resistanceaxle 906. The clamping forces exerted on the resistance axle by the clamshell clamp in conjunction with the corresponding shapes of the top andbottom sides of clam shell act to hold the resistance axle in a fixedposition and to resist torsional forces exerted on the resistance axleby the resistance packs 874.

As shown in FIGS. 35B and 35C, the exercise device can also include abolt 1650 retainer that allows the exercise device to be shipped withthe top side 1648 of the clam shell clamp 1640 loosely bolted to thebottom side 1642. As such, the resistance axle 906 can be easilyinstalled once the exercise device reaches a shipping destination. Forexample, in one embodiment, with the top side 1648 of the clam shellclamp 1640 loosely bolted to the bottom side 1642, the resistance axle906 can be slid with the curved side 1560 facing upward between the twosides of the clam shell clamp. The axial position of the resistance axle906 can be fixed by sliding the resistance axle through the clam shellclamp until a boss 1652 extending downward from the top side 1648 of theclam shell clamp 1640 engages a divot 1654 in the curved top side 1560of the resistance axle 906. Once the resistance axle is in position, thebolts 1646 can be tightened. The sequence in which the bolts 1646 aretightened can cause the clam shell clamp 1640 to exert additionalcompressive forces on opposing sides of the resistance axle 906 tofurther resist rotational forces exerted thereon by the resistancepacks. For example, in one embodiment, a user can extend a wrenchthrough apertures 1656 in the bolt retainer to first tighten the boltslabeled 1646-1 in FIG. 35B. The bolts labeled 1646-2 are tightened next,followed by the bolts labeled 1646-3, and followed by the bolts labeled1646-4.

As shown in FIGS. 22A, 35A, 35B, the linearizing cam 1448 is rotatablymounted the linearizing cam bearings 1644 around the resistance axle 906above the transmission assembly 902 such that the resistance belt 1442extends upward from the belt pulley to wrap around the outer surface ofthe linearizing cam 1448. A first side 1598 of the linearizing cam 1448is located adjacent the resistance support member 952. A raised surface1600 on the first side 1598 of the linearizing cam 1448 defines a stopledge 1602 adapted to engage the resistance support member 952. A firstresistance pack 1606 is bolted to a second side 1608 of the linearizingcam. The first resistance pack includes a housing 1610 partiallyenclosing a resistance element 1612 connected with a center hub 1614.The housing 1610, resistance element 1612, and center hub 1614 of thefirst resistance pack 1606 are operably connected to resist rotation ofthe housing 1610 with respect to the resistance axle 906 insubstantially the manner as described above with reference to theresistance pack 874 shown in FIGS. 34A-34D. Before connecting the firstresistance pack 1606 with the linearizing cam 1448, the housing 1610 ofthe first resistance pack 1606 is slightly rotated to stretch theresistance element 1612, which results in a pre-load. As such, pre-loadexerted by the first resistance pack forces the stop ledge 1602 on thelinearizing cam 1448 to abut the resistance support member 952 to themaintain the linearizing cam in a constant initial starting positionwhen not in use. As discussed in more detail below with reference toFIG. 22A and others, an outer side 1616 of the housing 1610 of the firstresistance pack 1606 can be configured with the same hooked connectionstructure as described above with reference to the second side 1540 ofthe resistance pack 874. As such, the first sides 1538 of resistancepacks 874 can be connected with the outer side 1616 of the firstresistance pack 1606 to selectively adjust the resistance of theexercise device.

Referring to FIGS. 22A, 34A-34D, and 35A-35B, when placing a resistancepack 874 on the resistance axle 906, the curved inner side 1556 on thecenter hub 1536 of the resistance pack 874 is first aligned with thecurved side 1560 on the resistance axle 906. The resistance pack 874 canthen be slid along the length of the resistance axle until the firstside 1538 of the resistance pack 874 abuts the outer side 1616 of thefirst resistance pack 1606 connected with the linearizing cam 1448. Toconnect the resistance pack 874 with the first resistance pack 1606, thehousing 1532 of the resistance pack 874 is rotated relative to the firstresistance pack 1606 to bring the hooks 1562 on the outer side 1616 ofthe first resistance pack into engagement with corresponding hooks 1562on the first side 1538 of the resistance pack 874. In one embodiment,when connecting a resistance pack on the resistance axle 906 for theright resistance system 870, the resistance pack is rotated 10-15degrees counterclockwise (as viewed from the right side of the exercisedevice) to bring the hooks 1562 on the first side 1538 into engagementwith the hooks 1562 on the outer side 1616 of the first resistance pack1606. The slight rotation in the counterclockwise direction stretchesthe resistance element in the resistance pack, which results inadditional pre-loads that maintain engagement of the hooks between theresistance packs. Additional resistance packs can be placed on theresistance axle connected with adjacent resistance packs in the mannerdescribed above.

As previously described, the level of resistance on the exercise deviceis can be adjusted by varying the number of interconnected resistancepacks 874 on the resistance axle 906, which in turn are connected withthe linearizing cam 1448. When tension is placed on the resistance belt1442 that causes the linearizing cam 1448 to rotate around theresistance axle 906, the housings 1532, 1610 of the interconnectedresistance packs 874, 1606 on the resistance axle 906 rotate along withthe linearizing cam 1448. Due to the resilient construction of theresistance elements inside the resistance packs, the resistance forceexerted by each resistance pack progressively increases as thelinearizing cam rotates. As such, an outer circumferential surface 1618of the linearizing cam 1448 can be shaped to offset the progressiveincrease in forces exerted by the resistance packs 874,1606. Moreparticularly, as the resistance belt 1442 unwinds from linearizing cam1448, a radial distance R1 from a center longitudinal axis 1620 of theresistance axle 906 to a location where the resistance belt separatesfrom the outer surface of the linearizing cam increases. In other words,a first force exerted on the resistance belt 1442 that causes thelinearizing cam 1448 to rotate will result in a progressively increasingtorque exerted on the linearizing cam as the linearizing cam rotatesaround the resistance axle 906. As such, although the resistance packsprovide a progressively increasing resistance torque as the housings arerotated relative the resistance axle, the progressively increasingtorque exerted by the resistance belt on the linearizing cam results ina substantially linear resistance force exerted on the resistance belt.It is to be appreciated that linearizing cams having different outershapes can be used with the present invention and as such, should not belimited to the shape of the linearizing cam described and depictedherein.

A description of the operation of the components associated with thecable-pulley system and resistance system located on the right and leftsides of the exercise device is provided below. Descriptions ofrotational directions (i.e. clockwise and counterclockwise) are from apoint of reference as viewed from the right side of the exercise device.

When using right side of the exercise device 858, the user applies aforce to the resistance cable 1222, pulling the first end 1428 of theresistance cable from the distal end portion 1382 of the right armassembly 894. The movement of the resistance cable 1222 is guided by thefirst pulley 1388, second pulley 1390, and lower direction pulley 1432of the right cable-pulley assembly 898. Because the second end 1434 ofthe resistance cable 1222 is terminated in the transmission pulley 1436,pulling the first end 1428 of the first resistance cable 1222 from theright arm assembly causes the transmission pulley 1436 of the rightresistance system 870 to rotate counterclockwise. Rotation of thetransmission pulley in the counterclockwise direction causes the beltpulley 1438 to rotate in the counterclockwise direction. As such, theresistance belt 1442 winds onto the belt pulley 1438. As the resistancebelt winds onto the belt pulley, the resistance belt unwinds from thelinearizing cam 1448 of the right resistance system 870, which causesthe linearizing cam to rotate counterclockwise around the resistanceaxle 906. The housing 1610 of first resistance pack 1606 rotates withthe linearizing cam 1448 along with the housings 1532 of any additionalresistance packs 874 that have been interconnected with first resistancepack. As such, the resistance packs provide a resistance force to theresistance belt as the linearizing cam rotates counterclockwise.

When the user releases the resistance cable 1222, the resistanceelements 1534, 1612 of the resistance packs 874,1606 of the rightresistance system 870 force the housings 1532, 1610 of the resistancepacks to rotate around the resistance axle 906 along with thelinearizing cam in the clockwise direction. Rotation of the linearizingcam in the clockwise direction unwinds the resistance belt 1442 from thebelt pulley 1438, causing the belt pulley and transmission pulley 1436to rotate clockwise. Rotation of the transmission pulley 1436 in theclockwise direction winds the resistance cable back onto thetransmission pulley, which pulls the resistance cable 1222 to retractback into the right arm assembly 894.

When using left side of the exercise device 858, the user applies aforce to the resistance cable 1222, pulling the first end 1428 of theresistance cable from the distal end portion 1382 of the left armassembly 896. The movement of the resistance cable 1222 is guided by thefirst pulley 1388, second pulley 1434, and lower direction pulley 1432of the left cable-pulley assembly 900. Because the second end 1434 ofthe resistance cable 1222 is terminated in the transmission pulley 1436,pulling the first end 1428 of the first resistance cable 1222 from theleft arm assembly causes the transmission pulley 1436 of the leftresistance system 870 to rotate clockwise. Rotation of the transmissionpulley in the clockwise direction causes the belt pulley 1438 to rotatein the clockwise direction. As such, the resistance belt 1442 winds ontothe belt pulley 1438. As the resistance belt winds onto the belt pulley,the resistance belt unwinds from the linearizing cam 1448 of the leftresistance system 872, which causes the linearizing cam to rotateclockwise around the resistance axle 906. The housing 1610 of firstresistance pack 1606 rotates with the linearizing cam 1448 along withthe housings 1532 of any additional resistance packs 874 that have beeninterconnected with first resistance pack. As such, the resistance packsprovide a resistance force to the resistance belt as the linearizing camrotates clockwise.

When the user releases the resistance cable 1222, the resistanceelements 1534, 1612 of the resistance packs 874, 1606 of the leftresistance system 872 force the housings 1532, 1610 of the resistancepacks to rotate around the resistance axle 906 along with thelinearizing cam in the counterclockwise direction. Rotation of thelinearizing cam in the counterclockwise direction unwinds the resistancebelt 1442 from the belt pulley 1438, causing the belt pulley andtransmission pulley 1436 to rotate counterclockwise. Rotation of thetransmission pulley 1436 in the counterclockwise direction winds theresistance cable back onto the transmission pulley, which pulls theresistance cable 1222 to retract back into the left arm assembly 896.

FIGS. 36A-36F show a second alternative exercise device 1622 conformingto the aspects of the present invention. The second alternative exercisedevice 1622 is similar to the first alternative exercise device 858. Assuch, the exercise device 1622 includes a main frame 862′ supportingadjustable right and left arm assemblies 894′, 896′ and right and leftcable-pulley assemblies 898′, 900′ providing a user interface with rightand left resistance systems 870′, 872′. The level of resistance of theresistance systems 870′, 872′ can be adjusted in the same manner asdescribed above with the resistance packs 874 of FIGS. 34A-34D. Also, asdescribed above, resistance cables 1222′ extend from the right and leftarm assemblies 894′, 896′ to transmission pulleys 1436′ of the right andleft resistance systems 870′, 872′. Further, the right and leftresistance systems 870′, 872′ include resistance belts 1442′ extendingfrom belt pulleys 1438′ to linearizing cams 1448′. As shown in FIGS.36A-36F, the resistance systems 870′, 872′ of the second alternativeexercise device 1622 include separate right and left resistance axles1624, 1626 that are substantially vertically oriented. As such, therouting of the resistance belts of the second alternative exercisedevice 1622 is oriented differently from the first alternative exercisedevice 858. More particularly, the right and left resistance systemsinclude first and second directional belt pulleys 1628, 1630 guide theresistance belts from the belt pulleys 1438′ to the linearizing cams1448′.

FIGS. 36A-36F illustrate the cable routing from the right arm assembly894′ to the right resistance system 870′. Various elements of theexercise device 872′ are not shown in FIGS. 36C-36F for clarity. Theresistance cable 1222′ extends through the right arm assembly 894′ tothe second pulley 1390′. The resistance cable 1222′ wraps around aportion of the second pulley 1390′ and extends downward inside the armsupport member 944′ to the lower directional pulley 1432′. From thelower direction pulley 1432′, the resistance cable 1222′ extendsrearward to wrap counterclockwise (as viewed from the right side of theexercise device) around and is terminated on the transmission pulley1436′. The resistance belt 1442′ extends upward and rearward from thebelt pulley 1438′ to the first directional belt pulley 1628. From thefirst directional belt pulley 1628, the resistance belt 1442′ extendsforward to the second directional belt pulley 1630. The firstdirectional belt pulley has a substantially horizontally oriented axisof rotation and the second directional belt pulley has a substantiallyvertically oriented axis of rotation. The change in orientation of theaxes of rotation between the first and second directional belt pulleyscauses the resistance belt 1442′ to twist as it extends forward from thefirst directional belt pulley 1628 and change direction as theresistance belt wraps around the second directional belt pulley 1630. Assuch, the resistance belt 1442′ extends rightward from seconddirectional pulley 1630 to connect with the linearizing cam 1448′ of theright resistance system 870′.

FIGS. 36A-36F illustrate the cable routing from the left arm assembly896′ to the left resistance system 872′. As previously mentioned,various elements of the exercise device 872′ are not shown in FIGS.36C-36F for clarity. The resistance cable 1222′ extends through the leftarm assembly 896′ to the second pulley 1390′. The resistance cable 1222′wraps around a portion of the second pulley 1390′ and extends downwardthrough the arm support member 944′ to the lower directional pulley1432′. From the lower direction pulley 1432′, the resistance cable 1222′extends rearward to wrap counterclockwise (as viewed from the right sideof the exercise device) around and is terminated on the transmissionpulley 1436′. The resistance belt 1442′ extends upward and forward fromthe belt pulley 1438′ to the first directional belt pulley 1628. Fromthe first directional belt pulley 1628, the resistance belt 1442′extends rearward to the second directional belt pulley 1630. The firstdirectional belt pulley has a substantially horizontally oriented axisof rotation and the second directional belt pulley has a substantiallyvertically oriented axis of rotation. The change in orientation of theaxes of rotation between the first and second directional belt pulleyscauses the resistance belt 1442′ to twist as it extends rearward fromthe first directional belt pulley 1628 and change direction as theresistance belt wraps around the second directional belt pulley 1630. Assuch, the resistance belt 1442′ extends leftward from second directionalpulley 1630 to connect with the linearizing cam 1448′ of the leftresistance system 872′.

Although the various exercise devices described and depicted hereininclude resistance systems that utilize resistance packs with torsionalsprings as the source of resistance, it is to be appreciated that theresistance systems on these exercise devices can utilizes other forms ofresistance. For example, some embodiments of the exercise devices areconfigured resistance systems that utilize conventional weight stacksused as the source of resistance. Still other embodiments utilize linearsprings or other types of resiliently flexible elements as the source ofresistance.

Although various representative embodiments of this invention have beendescribed above with a certain degree of particularity, those skilled inthe art could make numerous alterations to the disclosed embodimentswithout departing from the spirit or scope of the inventive subjectmatter set forth in the specification and claims. All directionalreferences (e.g., upper, lower, upward, downward, left, right, leftward,rightward, top, bottom, above, below, vertical, horizontal, clockwise,and counterclockwise) are only used for identification purposes to aidthe reader's understanding of the embodiments of the present invention,and do not create limitations, particularly as to the position,orientation, or use of the invention unless specifically set forth inthe claims. Joinder references (e.g., attached, coupled, connected, andthe like) are to be construed broadly and may include intermediatemembers between a connection of elements and relative movement betweenelements. As such, joinder references do not necessarily infer that twoelements are directly connected and in fixed relation to each other.

In some instances, components are described with reference to “ends”having a particular characteristic and/or being connected with anotherpart. However, those skilled in the art will recognize that the presentinvention is not limited to components which terminate immediatelybeyond their points of connection with other parts. Thus, the term “end”should be interpreted broadly, in a manner that includes areas adjacent,rearward, forward of, or otherwise near the terminus of a particularelement, link, component, part, member or the like. In methodologiesdirectly or indirectly set forth herein, various steps and operationsare described in one possible order of operation, but those skilled inthe art will recognize that steps and operations may be rearranged,replaced, or eliminated without necessarily departing from the spiritand scope of the present invention. It is intended that all mattercontained in the above description or shown in the accompanying drawingsshall be interpreted as illustrative only and not limiting. Changes indetail or structure may be made without departing from the spirit of theinvention as defined in the appended claims.

1. An exercise device comprising: a frame; an arm bi-directionallycoupled with the frame through a first axle and a second axle; a firstsecuring mechanism adapted to secure the arm in a first positionrelative to the first axle; a second securing mechanism adapted tosecure the arm in a second position relative to the second axle; and arelease mechanism operably coupled with the first and second securingmechanisms and adapted to simultaneously activate the securingmechanisms to move the arm about the first and second axles.
 2. Theexercise device of claim 1, wherein the first securing mechanismcomprises a pop pin.
 3. The exercise device of claim 1, wherein thesecond securing mechanism comprises a pop pin.
 4. The exercise device ofclaim 1, further comprising: a resistance system supported on the frame;and a cable operably coupling the arm with the resistance system.
 5. Theexercise device of claim 4, further comprising: at least one pulleyoperably coupled with the cable; a housing rotatably supporting the atleast one pulley; and wherein the housing is pivotally connected withthe arm through the first axle and wherein the housing is pivotallyconnected with the frame through the second axle.
 6. The exercise deviceof claim 1, wherein the release mechanism comprises a lever pivotallyconnected with the arm.
 7. The exercise device of claim 1, wherein therelease mechanism comprises a handle slidingly connected with the arm.8. The exercise device of claim 1, further comprising a third securingmechanism adapted to secure the arm in a third position relative to theframe.
 9. The exercise device of claim 8, wherein the third securingmechanism comprises a pop pin.
 10. An exercise device comprising: aframe; a resistance system supported by the frame; an actuation deviceoperably coupled with the resistance system; a first cam operablycoupled with the resistance system; a second cam operably coupled withthe resistance system; and a selector mechanism operably coupled withthe first and second cams, the selector mechanism configured to operablycouple the first and second cams with the actuation device to change theresistance forces from the resistance system exerted on the actuationdevice as the actuation device is displaced.
 11. The exercise device ofclaim 10, wherein the actuation device comprises at least one cableextending from a first end portion to a second end portion; and whereinthe selector mechanism operably couples the first and second cams withthe at least one cable to change the resistance forces from theresistance system exerted on the at least one cable as the second endportion of the at least one cable is displaced.
 12. The exercise deviceof claim 11, wherein the actuation device further comprises a handleconnected the first end portion of the at least one cable.
 13. Theexercise device of claim 10, when the first cam is operably coupled withthe actuation device, the resistance forces exerted by the resistancesystem on actuation device increase as the actuation device moves from afirst position to a second position.
 14. The exercise device of claim10, when the first cam is operably coupled with the actuation device,the resistance forces exerted by the resistance system on actuationdevice decrease as the actuation device moves from a first position to asecond position.
 15. The exercise device of claim 10, when the first camis operably coupled with the actuation device, the resistance forcesexerted by the resistance system on actuation device remain constant asthe actuation device moves from a first position to a second position.16. The exercise device of claim 10, further comprising: an axleconnected with the frame and rotatably supporting the first cam and thesecond cam; and wherein the selector mechanism is connected with thefirst cam to selectively position the first and second cams along thelength of the axle.
 17. The exercise device of claim 16, wherein theselector mechanism comprises: a member connected with the axle; a handleconnected with the first cam; and wherein the knob is adapted toselectively connect with the member to selectively secure the positionsof the first and second cams along the length of the axle.
 18. Anexercise device comprising: a frame; a resistance structure including anaxle supported on the frame; a transmission assembly coupled with theresistance structure; and a plurality of resistance packs adapted toreceive the axle, each one of the plurality of resistance packsincluding a housing adapted to connect with the transmission assemblyand another one of the plurality of resistance packs.
 19. The exercisedevice of claim 18, wherein the housings of each one of the plurality ofresistance packs includes at least one hook adapted to selectivelyconnect with a corresponding hook on the housing of another one of theplurality of resistance packs.
 20. The exercise device of claim 18,wherein the each of the plurality of resistance packs comprises: atleast one resistance element connected with the housing; a hub connectedwith the at least one resistance element and with the axle; and whereinthe hub remains stationary as the housings rotate relative to the axle,causing the resistance element to stretch.